/* roulang page: index */
:root{
  --bg:#070B0A;
  --bg-1:#0E1513;
  --bg-2:#121B18;
  --bg-deep:#050908;
  --line:rgba(255,255,255,.08);
  --line-neon:rgba(43,230,166,.30);
  --text:#F4F7F5;
  --muted:#9BA8A2;
  --titan:#9AA8A2;
  --neon:#2BE6A6;
  --amber:#FFB020;
  --violet:#8B7CFF;
  --radius-card:12px;
  --radius-panel:16px;
  --radius-pill:999px;
  --radius-input:8px;
  --shadow-panel:0 20px 60px rgba(0,0,0,.35);
  --glow:0 0 0 1px rgba(43,230,166,.25), 0 0 24px rgba(43,230,166,.18);
  --gap:96px;
  --font:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","DIN Alternate","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 560px at 82% -8%, rgba(43,230,166,.09), transparent 62%),
    radial-gradient(900px 520px at 4% 22%, rgba(139,124,255,.07), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s ease}
a:hover{color:var(--neon)}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:750;letter-spacing:-.02em}
p{margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:4px}
::selection{background:rgba(43,230,166,.28)}
.wrap{width:100%;max-width:1320px;margin:0 auto;padding:0 24px}
.section{padding:var(--gap) 0}
.section--tight{padding:64px 0}
.section--alt{background:linear-gradient(180deg,rgba(18,27,24,.85),rgba(7,11,10,.2))}
.section-head{max-width:760px;margin-bottom:44px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--neon);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--neon);box-shadow:0 0 12px rgba(43,230,166,.7)}
.section-title{font-size:clamp(1.75rem,2.6vw,2.25rem);margin-bottom:14px}
.section-sub{color:var(--muted);font-size:16px;line-height:1.8;max-width:680px}
.section-head--center .section-sub{margin:0 auto}
.divider-neon{height:1px;background:linear-gradient(90deg,transparent,var(--line-neon),transparent);border:0;margin:0}

/* ---------- buttons ---------- */
.btn-neon,.btn-outline-neon,.btn-amber,.btn-text{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border-radius:var(--radius-pill);
  padding:13px 28px;
  font-size:15px;font-weight:650;letter-spacing:.01em;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease,filter .25s ease;
  white-space:nowrap;
}
.btn-neon{background:var(--neon);color:#05100C;border:1px solid var(--neon)}
.btn-neon:hover{color:#05100C;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(43,230,166,.4),0 0 28px rgba(43,230,166,.45)}
.btn-outline-neon{background:transparent;color:var(--text);border:1px solid var(--line-neon)}
.btn-outline-neon:hover{color:#05100C;background:var(--neon);border-color:var(--neon);transform:translateY(-2px);box-shadow:0 0 24px rgba(43,230,166,.35)}
.btn-amber{background:var(--amber);color:#1A1200;border:1px solid var(--amber)}
.btn-amber:hover{color:#1A1200;transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 0 24px rgba(255,176,32,.4)}
.btn-text{color:var(--neon);padding:6px 0;font-weight:600}
.btn-text::after{content:"→";transition:transform .25s ease}
.btn-text:hover{color:var(--neon)}
.btn-text:hover::after{transform:translateX(5px)}
.btn-block{width:100%}
.btn-neon[disabled],.btn-neon.is-loading{opacity:.72;cursor:not-allowed;transform:none;box-shadow:none}
.spinner{width:16px;height:16px;border-radius:50%;border:2px solid rgba(5,16,12,.3);border-top-color:#05100C;display:none;animation:spin .7s linear infinite}
.btn-neon.is-loading .spinner{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- badges ---------- */
.badge-tag,.badge-tier,.badge-hot,.badge-lock{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:var(--radius-pill);
  padding:4px 12px;font-size:12.5px;font-weight:600;letter-spacing:.02em;line-height:1.6;
}
.badge-tag{background:rgba(154,168,162,.14);color:#C6D2CD;border:1px solid var(--line)}
.badge-tier{background:rgba(139,124,255,.14);color:#BDB3FF;border:1px solid rgba(139,124,255,.34)}
.badge-hot{background:rgba(255,176,32,.14);color:var(--amber);border:1px solid rgba(255,176,32,.34)}
.badge-lock{background:rgba(139,124,255,.18);color:#CFC6FF;border:1px solid rgba(139,124,255,.4)}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(14,21,19,.86);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-neon);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:750;font-size:17.5px;letter-spacing:-.01em}
.brand__mark{display:inline-flex;width:30px;height:30px;align-items:center;justify-content:center;border-radius:9px;background:rgba(43,230,166,.1);box-shadow:0 0 16px rgba(43,230,166,.2)}
.brand__text{white-space:nowrap}
.brand:hover .brand__text{color:var(--neon)}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;display:inline-block;padding:10px 16px;font-size:15px;font-weight:600;color:var(--muted)}
.nav-link::after{content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;border-radius:2px;background:transparent;transition:.25s ease}
.nav-link:hover{color:var(--text)}
.nav-link.is-active{color:var(--neon)}
.nav-link.is-active::after{background:var(--neon);box-shadow:0 0 12px rgba(43,230,166,.85)}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-cta{padding:10px 22px;font-size:14.5px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--neon);box-shadow:0 0 8px rgba(43,230,166,.6);transition:.25s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-drawer{
  position:fixed;inset:0 0 0 auto;width:min(86vw,380px);
  background:rgba(9,14,13,.98);
  backdrop-filter:blur(18px);
  border-left:1px solid var(--line-neon);
  transform:translateX(102%);transition:transform .32s ease;
  z-index:1045;display:flex;flex-direction:column;padding:24px 22px 28px;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);color:var(--neon);font-size:20px;line-height:1;display:flex;align-items:center;justify-content:center}
.drawer-menu{display:flex;flex-direction:column;gap:4px}
.drawer-link{position:relative;padding:15px 16px 15px 22px;font-size:16.5px;font-weight:650;color:#D6DEDA;border-radius:10px;transition:.25s ease}
.drawer-link::before{content:"";position:absolute;left:6px;top:14px;bottom:14px;width:2px;border-radius:2px;background:var(--line-neon);opacity:0;transition:.25s ease}
.drawer-link:hover,.drawer-link.is-active{color:var(--neon);background:rgba(43,230,166,.06)}
.drawer-link:hover::before,.drawer-link.is-active::before{opacity:1;box-shadow:0 0 10px rgba(43,230,166,.8)}
.drawer-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line)}
.drawer-foot p{color:var(--muted);font-size:13.5px;margin-bottom:14px}
.backdrop{position:fixed;inset:0;background:rgba(3,6,6,.66);opacity:0;pointer-events:none;transition:.3s;z-index:1040}
.backdrop.is-open{opacity:1;pointer-events:auto}

/* ---------- hero ---------- */
.hero{position:relative;display:flex;align-items:center;min-height:78vh;padding:150px 0 100px;overflow:hidden}
.hero__bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;transform:scale(1.03)}
.hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,11,10,.95) 0%,rgba(7,11,10,.82) 46%,rgba(7,11,10,.5) 100%)}
.hero__grid{position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:68px 68px;
  -webkit-mask-image:radial-gradient(78% 62% at 28% 42%,#000,transparent 74%);
  mask-image:radial-gradient(78% 62% at 28% 42%,#000,transparent 74%);
}
.hero__inner{position:relative;z-index:2;max-width:820px}
.hero__title{font-size:clamp(2.2rem,4.6vw,3.5rem);font-weight:800;margin-bottom:20px}
.hero__title span{color:var(--neon)}
.hero__lead{font-size:17px;color:#C4CFCA;max-width:660px;line-height:1.85;margin-bottom:32px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero__stats{display:flex;flex-wrap:wrap;gap:12px}
.stat-chip{
  display:flex;align-items:center;gap:10px;
  padding:12px 18px;border-radius:var(--radius-pill);
  background:rgba(14,21,19,.72);border:1px solid var(--line);
  font-size:14px;color:#CFD9D4;backdrop-filter:blur(8px);
}
.stat-chip b{font-family:var(--font-num);font-size:17px;color:var(--neon);font-weight:700}
.hero__eyebrow{margin-bottom:18px}
@keyframes riseIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.hero__eyebrow,.hero__title,.hero__lead,.hero__actions,.hero__stats{animation:riseIn .72s cubic-bezier(.22,.7,.3,1) both}
.hero__title{animation-delay:.08s}
.hero__lead{animation-delay:.16s}
.hero__actions{animation-delay:.24s}
.hero__stats{animation-delay:.32s}

/* ---------- trust strip ---------- */
.strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-panel);overflow:hidden}
.strip__item{background:var(--bg-1);padding:24px 22px}
.strip__item h3{font-size:16px;margin-bottom:8px}
.strip__item p{color:var(--muted);font-size:14.5px;line-height:1.8}
.strip__item .num{font-family:var(--font-num);font-size:22px;color:var(--neon);font-weight:750;display:block;margin-bottom:6px}

/* ---------- compare table ---------- */
.table-shell{position:relative;border:1px solid var(--line);border-radius:var(--radius-panel);background:rgba(14,21,19,.6);overflow:hidden}
.table-scroll{overflow-x:auto;overflow-y:visible;-webkit-overflow-scrolling:touch}
.tier-table{width:100%;min-width:880px;border-collapse:separate;border-spacing:0;margin:0}
.tier-table thead th{
  position:sticky;top:0;z-index:3;
  background:#0B1211;
  padding:20px 20px;text-align:left;font-size:14px;letter-spacing:.06em;
  color:var(--muted);font-weight:600;border-bottom:1px solid var(--line);
}
.tier-table thead th .tier-name{display:block;font-size:17px;color:var(--text);font-weight:750;letter-spacing:0;margin-bottom:4px}
.tier-table tbody th{
  position:sticky;left:0;z-index:2;
  background:#0B1211;
  text-align:left;font-size:14.5px;color:#C9D4CF;font-weight:600;
  padding:18px 20px;border-bottom:1px solid var(--line);min-width:180px;
}
.tier-table td{padding:18px 20px;border-bottom:1px solid var(--line);font-size:14.5px;color:#D7DFDB;vertical-align:middle}
.tier-table tbody tr:hover th,.tier-table tbody tr:hover td{background:#0F1817}
.tier-table tbody tr:last-child th,.tier-table tbody tr:last-child td{border-bottom:0}
.tier-table .is-reco{background:linear-gradient(180deg,rgba(43,230,166,.10),rgba(43,230,166,.03));border-left:1px solid var(--line-neon);border-right:1px solid var(--line-neon)}
.tier-table tbody tr:hover .is-reco{background:linear-gradient(180deg,rgba(43,230,166,.15),rgba(43,230,166,.05))}
.cell-yes{color:var(--neon);font-weight:650}
.cell-no{color:#5F6E69}
.scroll-hint{display:none;font-size:13px;color:var(--muted);margin-top:12px;text-align:center}
.price{font-family:var(--font-num);font-size:19px;font-weight:750;color:var(--text)}
.price small{font-family:var(--font);font-size:12.5px;color:var(--muted);font-weight:500;margin-left:4px}

/* ---------- tier cards ---------- */
.tier-card{
  position:relative;display:flex;flex-direction:column;
  background:linear-gradient(180deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);border-radius:var(--radius-panel);
  padding:26px 24px;height:100%;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.tier-card::before{content:"";position:absolute;top:0;left:24px;right:24px;height:3px;border-radius:0 0 4px 4px;background:var(--titan);opacity:.55}
.tier-card.t-standard::before{background:var(--titan)}
.tier-card.t-pro::before{background:var(--neon)}
.tier-card.t-vip::before{background:var(--violet)}
.tier-card.t-max::before{background:var(--amber)}
.tier-card:hover{transform:translateY(-2px);border-color:var(--line-neon);box-shadow:var(--glow)}
.tier-card.is-reco{border-color:var(--line-neon);box-shadow:var(--glow);transform:scale(1.03)}
.tier-card.is-reco:hover{transform:scale(1.03) translateY(-2px)}
.tier-card__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.tier-card__name{font-size:19px;font-weight:750}
.tier-card__price{font-family:var(--font-num);font-size:26px;font-weight:750;color:var(--text);margin-bottom:6px}
.tier-card__price small{font-family:var(--font);font-size:13px;color:var(--muted);font-weight:500}
.tier-card__desc{color:var(--muted);font-size:14.5px;margin-bottom:18px}
.tier-list{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}
.tier-list li{position:relative;padding-left:22px;font-size:14.5px;color:#D3DCD8}
.tier-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--neon);opacity:.8}
.tier-card.t-vip .tier-list li::before{background:var(--violet)}
.tier-card.t-max .tier-list li::before{background:var(--amber)}
.tier-card.t-standard .tier-list li::before{background:var(--titan)}
.tier-card .btn-neon,.tier-card .btn-outline-neon{margin-top:auto}

/* ---------- preview cards ---------- */
.preview-card{
  position:relative;display:block;border-radius:14px;overflow:hidden;
  border:1px solid var(--line);background:var(--bg-1);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.preview-card:hover{transform:translateY(-2px);border-color:var(--line-neon);box-shadow:var(--glow)}
.preview-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A100F}
.preview-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.preview-card:hover .preview-card__media img{transform:scale(1.03)}
.lock-overlay{
  position:absolute;inset:0;display:flex;align-items:flex-start;justify-content:flex-end;
  padding:12px;background:linear-gradient(180deg,rgba(7,11,10,.35),rgba(7,11,10,.78));
  transition:background .3s ease;
}
.preview-card:hover .lock-overlay{background:linear-gradient(180deg,rgba(7,11,10,.16),rgba(7,11,10,.62))}
.preview-card__body{padding:18px 18px 20px}
.preview-card__body h3{font-size:16px;margin-bottom:10px;line-height:1.5}
.preview-card__meta{display:flex;align-items:center;justify-content:space-between;gap:10px;color:var(--muted);font-size:13px}
.preview-card__meta span.go{color:var(--neon);font-weight:600}

/* ---------- news list ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-panel);
  overflow:hidden;transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.news-card:hover{transform:translateY(-2px);border-color:var(--line-neon);box-shadow:var(--glow)}
.news-card__thumb{aspect-ratio:16/9;overflow:hidden;background:#0A100F}
.news-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.news-card:hover .news-card__thumb img{transform:scale(1.03)}
.news-card__body{padding:22px 22px 20px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-card__body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__body p{color:var(--muted);font-size:14.5px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px}
.news-card__meta .go{color:var(--neon);font-weight:600}
.empty-state{
  border:1px dashed var(--line-neon);border-radius:var(--radius-panel);
  padding:46px 24px;text-align:center;background:rgba(14,21,19,.55);
}
.empty-state strong{display:block;font-size:17px;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:14.5px;margin-bottom:18px}
.pager-slot{display:flex;justify-content:center;margin-top:40px}

/* ---------- faq ---------- */
.faq{max-width:900px;margin:0 auto}
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0}
.faq .accordion-item:first-child{border-top:1px solid var(--line)}
.faq .accordion-button{
  position:relative;background:transparent;color:var(--text);
  font-size:17px;font-weight:650;padding:22px 52px 22px 20px;
  box-shadow:none;border-radius:0;line-height:1.5;
  transition:color .24s ease,box-shadow .24s ease,background .24s ease;
}
.faq .accordion-button:not(.collapsed){color:var(--neon);background:rgba(43,230,166,.04);box-shadow:inset 2px 0 0 var(--neon)}
.faq .accordion-button:hover{color:var(--neon)}
.faq .accordion-button:focus{box-shadow:inset 2px 0 0 var(--neon);outline:none}
.faq .accordion-button::after{
  content:"";position:absolute;right:20px;top:50%;width:14px;height:14px;
  background-image:linear-gradient(var(--neon),var(--neon)),linear-gradient(var(--neon),var(--neon));
  background-position:center;background-size:14px 2px,2px 14px;background-repeat:no-repeat;
  transform:translateY(-50%);transition:transform .24s ease;
}
.faq .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg)}
.faq .accordion-body{padding:0 20px 24px;color:var(--muted);font-size:15px;line-height:1.85}

/* ---------- cta / form ---------- */
.cta-panel{
  position:relative;border-radius:var(--radius-panel);
  border:1px solid var(--line-neon);
  background:
    radial-gradient(600px 300px at 88% 8%, rgba(43,230,166,.14), transparent 62%),
    linear-gradient(180deg,var(--bg-2),var(--bg-1));
  box-shadow:var(--shadow-panel);overflow:hidden;padding:44px 40px;
}
.cta-panel::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--neon),transparent);opacity:.75}
.cta-panel h2{font-size:clamp(1.5rem,2.4vw,2rem);margin-bottom:14px}
.cta-panel .lead{color:var(--muted);font-size:15.5px;line-height:1.85;margin-bottom:24px}
.benefit-summary{display:flex;flex-direction:column;gap:12px}
.benefit-summary li{position:relative;padding-left:24px;font-size:14.5px;color:#D3DCD8}
.benefit-summary li::before{content:"";position:absolute;left:0;top:8px;width:9px;height:9px;border-radius:2px;background:var(--neon);box-shadow:0 0 10px rgba(43,230,166,.6)}
.member-form{display:flex;flex-direction:column;gap:18px;background:rgba(9,14,13,.62);border:1px solid var(--line);border-radius:14px;padding:26px 24px}
.field__label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:8px;letter-spacing:.03em}
.field input[type=text],.field input[type=tel]{
  width:100%;background:#0A100F;border:1px solid var(--line);
  border-radius:var(--radius-input);padding:13px 16px;font-size:15px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field input::placeholder{color:#6C7B76}
.field input:focus{outline:none;border-color:var(--neon);box-shadow:0 0 0 3px rgba(43,230,166,.14)}
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.code-row{display:flex;gap:10px}
.code-row input{flex:1}
.btn-code{
  flex:0 0 auto;padding:0 18px;border-radius:var(--radius-input);
  border:1px solid var(--line-neon);color:var(--neon);font-size:14px;font-weight:600;
  background:transparent;transition:.22s ease;white-space:nowrap;
}
.btn-code:hover{background:rgba(43,230,166,.12)}
.btn-code[disabled]{opacity:.6;cursor:not-allowed}
.tier-picker{display:flex;flex-wrap:wrap;gap:10px}
.tier-pill{position:relative;display:inline-flex}
.tier-pill input{position:absolute;opacity:0;pointer-events:none}
.tier-pill span{
  display:inline-block;padding:10px 20px;border-radius:var(--radius-pill);
  border:1px solid var(--line);font-size:14px;color:#C9D4CF;background:rgba(14,21,19,.6);
  transition:.22s ease;cursor:pointer;
}
.tier-pill input:checked + span{border-color:var(--neon);color:var(--neon);background:rgba(43,230,166,.1);box-shadow:0 0 16px rgba(43,230,166,.22)}
.tier-pill input:focus-visible + span{outline:2px solid var(--neon);outline-offset:2px}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);line-height:1.7}
.agree input{width:16px;height:16px;margin-top:3px;accent-color:#2BE6A6}
.form-note{font-size:13px;color:var(--amber)}
.form-ok{font-size:13.5px;color:var(--neon)}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line-neon);padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;border-bottom:1px solid var(--line)}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:750;margin-bottom:16px}
.footer-grid p{color:var(--muted);font-size:14px;line-height:1.85}
.footer-col h4{font-size:14.5px;margin-bottom:16px;color:#D8E1DD;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:var(--muted);font-size:14px}
.footer-links a:hover{color:var(--neon)}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;padding-top:22px;color:#6F7D78;font-size:13px}
.footer-bottom a{color:#8D9B96}
.footer-bottom a:hover{color:var(--neon)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .strip{grid-template-columns:repeat(2,1fr)}
  .tier-card.is-reco{transform:none}
  .tier-card.is-reco:hover{transform:translateY(-2px)}
}
@media (max-width:991px){
  :root{--gap:72px}
  .nav-menu,.nav-right .nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-inner{height:64px}
  .hero{padding:120px 0 80px;min-height:70vh}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-panel{padding:34px 26px}
}
@media (max-width:767px){
  :root{--gap:56px}
  body{font-size:16px}
  .wrap{padding:0 18px}
  .hero{min-height:60vh;padding:104px 0 64px}
  .hero__actions{gap:12px}
  .hero__actions .btn-neon,.hero__actions .btn-outline-neon{width:100%}
  .strip{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .field-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .scroll-hint{display:block}
  .cta-panel{padding:26px 18px}
  .member-form{padding:20px 16px}
  .section-head{margin-bottom:32px}
}
@media (max-width:575px){
  .hero__title{font-size:2rem}
  .stat-chip{width:100%}
  .tier-pill span{padding:9px 16px;font-size:13.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --bg:#070B0A;
  --bg-1:#0E1513;
  --bg-2:#121B18;
  --text:#F4F7F5;
  --text-soft:#DDE5E1;
  --muted:#9BA8A2;
  --titan:#9AA8A2;
  --line:rgba(255,255,255,.08);
  --neon:#2BE6A6;
  --neon-line:rgba(43,230,166,.30);
  --neon-glow:0 0 0 1px rgba(43,230,166,.25),0 0 24px rgba(43,230,166,.18);
  --amber:#FFB020;
  --violet:#8B7CFF;
  --r-btn:999px;
  --r-card:12px;
  --r-panel:16px;
  --r-input:8px;
  --shadow:0 20px 60px rgba(0,0,0,.35);
  --shadow-soft:0 12px 34px rgba(0,0,0,.28);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 520px at 10% -12%,rgba(43,230,166,.10),transparent 62%),
    radial-gradient(760px 460px at 96% -6%,rgba(139,124,255,.10),transparent 62%),
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  background-attachment:fixed,fixed,scroll,scroll;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--neon);text-decoration:none;transition:color var(--ease),opacity var(--ease)}
a:hover{color:#7BF3CB}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(43,230,166,.28);color:#fff}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:6px}

.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(1.75rem,2.6vw,2.25rem)}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--neon);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--neon);box-shadow:0 0 10px rgba(43,230,166,.7)}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--neon-line),transparent);border:0;margin:0}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--neon);color:#052019;box-shadow:0 8px 26px rgba(43,230,166,.22)}
.btn-primary:hover{color:#052019;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(43,230,166,.4),0 0 30px rgba(43,230,166,.35)}
.btn-amber{background:var(--amber);color:#231603;box-shadow:0 8px 26px rgba(255,176,32,.2)}
.btn-amber:hover{color:#231603;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,176,32,.4),0 0 30px rgba(255,176,32,.32)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{color:var(--neon);border-color:var(--neon-line);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--neon);border-color:var(--neon-line)}
.btn-outline:hover{background:rgba(43,230,166,.12);color:var(--neon);transform:translateY(-2px);box-shadow:var(--neon-glow)}
.btn-sm{padding:9px 20px;font-size:14px}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;color:var(--neon)}
.btn-link i{transition:transform var(--ease)}
.btn-link:hover i{transform:translateX(4px)}

/* ---------- badges ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12.5px;font-weight:700;line-height:1.5;
  background:rgba(154,168,162,.14);color:var(--titan);border:1px solid var(--line);
}
.badge-neon{background:rgba(43,230,166,.12);color:var(--neon);border-color:var(--neon-line)}
.badge-amber{background:rgba(255,176,32,.14);color:var(--amber);border-color:rgba(255,176,32,.32)}
.badge-violet{background:rgba(139,124,255,.16);color:#B7ADFF;border-color:rgba(139,124,255,.34)}
.badge-cat{background:rgba(43,230,166,.10);color:var(--neon);border-color:var(--neon-line)}

/* ---------- header / nav ---------- */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:1200;background:linear-gradient(90deg,var(--neon),#8B7CFF);box-shadow:0 0 12px rgba(43,230,166,.7);transition:width 90ms linear}
.site-header{
  position:sticky;top:0;z-index:1100;
  background:rgba(14,21,19,.88);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{content:"";display:block;height:1px;background:linear-gradient(90deg,transparent,var(--neon-line) 20%,var(--neon-line) 80%,transparent)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:17px;letter-spacing:-.01em}
.brand:hover{color:var(--text)}
.brand__mark{display:inline-flex;align-items:center;justify-content:center;filter:drop-shadow(0 0 10px rgba(43,230,166,.45))}
.brand__text{white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:14px}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:10px;
  color:#C9D3CF;font-size:15px;font-weight:600;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--neon)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--neon);box-shadow:0 0 12px rgba(43,230,166,.85);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:transparent;border:1px solid var(--line);cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--neon);box-shadow:0 0 8px rgba(43,230,166,.7);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{
  position:fixed;inset:0;z-index:1150;background:rgba(7,11,10,.97);
  padding:24px;display:none;flex-direction:column;
}
.mobile-drawer.is-open{display:flex}
.mobile-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:transparent;color:var(--neon);font-size:18px;cursor:pointer}
.drawer-list{display:flex;flex-direction:column;gap:6px}
.drawer-list a{
  display:flex;align-items:center;gap:12px;padding:16px 14px;border-radius:12px;
  color:var(--text);font-size:17px;font-weight:700;border-left:2px solid transparent;
}
.drawer-list a::before{content:"";width:3px;height:18px;border-radius:2px;background:rgba(154,168,162,.35)}
.drawer-list a:hover,.drawer-list a.is-active{background:rgba(43,230,166,.08);border-left-color:var(--neon);color:var(--neon)}
.drawer-list a:hover::before,.drawer-list a.is-active::before{background:var(--neon);box-shadow:0 0 10px rgba(43,230,166,.8)}
.drawer-cta{margin-top:auto;padding-top:24px}

/* ---------- article hero ---------- */
.article-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:56px 0 44px}
.article-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.30;transform:scale(1.02);
}
.article-hero__veil{
  position:absolute;inset:0;
  background:
    radial-gradient(760px 380px at 12% 10%,rgba(43,230,166,.18),transparent 62%),
    linear-gradient(180deg,rgba(7,11,10,.62) 0%,rgba(7,11,10,.93) 78%,var(--bg) 100%);
}
.article-hero .wrap{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13.5px;color:var(--muted);margin-bottom:22px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--neon)}
.crumb .sep{color:rgba(155,168,162,.5)}
.crumb .current{color:var(--text-soft);max-width:52ch;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.article-head{max-width:860px}
.article-head h1{font-size:clamp(1.9rem,3.4vw,2.9rem);line-height:1.24;margin-top:16px}
.article-lead{margin-top:18px;color:#BAC6C1;font-size:16.5px;line-height:1.85}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:24px;color:var(--muted);font-size:14px}
.article-meta span{display:inline-flex;align-items:center;gap:8px}
.article-meta i{color:var(--neon);font-size:13px}
.article-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.action-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:#CBD5D1;font-size:14px;font-weight:600;cursor:pointer;
  transition:all var(--ease);
}
.action-btn:hover{color:var(--neon);border-color:var(--neon-line);background:rgba(43,230,166,.08);transform:translateY(-2px)}
.action-btn.is-on{color:var(--amber);border-color:rgba(255,176,32,.36);background:rgba(255,176,32,.10)}

/* ---------- article layout ---------- */
.article-main{padding:64px 0 88px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,820px) 268px;
  gap:56px;
  justify-content:center;
  align-items:start;
}
.article-body{
  max-width:820px;font-size:17px;line-height:1.9;color:var(--text-soft);
  word-wrap:break-word;overflow-wrap:break-word;
}
.article-body > * + *{margin-top:1.2em}
.article-body h2{
  position:relative;padding-left:18px;margin-top:2.1em;
  font-size:clamp(1.35rem,2.1vw,1.62rem);color:var(--text);line-height:1.4;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.42em;width:4px;height:1em;border-radius:2px;
  background:var(--neon);box-shadow:0 0 12px rgba(43,230,166,.7);
}
.article-body h3{
  margin-top:1.7em;font-size:1.16rem;color:#EFF5F2;font-weight:700;letter-spacing:-.01em;
}
.article-body p{color:#D6DFDB}
.article-body strong{color:#fff;font-weight:700}
.article-body a{color:var(--neon);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{text-shadow:0 0 12px rgba(43,230,166,.55)}
.article-body ul,.article-body ol{padding-left:1.35em;color:#D6DFDB}
.article-body ul{list-style:none;padding-left:0}
.article-body ul li{position:relative;padding-left:22px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;border-radius:2px;
  background:rgba(43,230,166,.85);box-shadow:0 0 8px rgba(43,230,166,.55);
}
.article-body ol{list-style:decimal}
.article-body li + li{margin-top:.5em}
.article-body blockquote{
  margin:1.6em 0;padding:20px 24px;border-radius:0 var(--r-card) var(--r-card) 0;
  border-left:3px solid var(--neon-line);background:rgba(18,27,24,.9);color:#C7D2CD;
}
.article-body blockquote p{color:#C7D2CD}
.article-body img{border-radius:var(--r-card);margin:1.6em auto;box-shadow:var(--shadow-soft)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{margin-top:10px;font-size:13.5px;color:var(--muted);text-align:center}
.article-body table{width:100%;display:block;overflow-x:auto;border-collapse:collapse;font-size:15px}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.article-body th{color:var(--neon);font-weight:700;background:rgba(43,230,166,.06)}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.2em 0}
.article-body code{background:rgba(255,255,255,.06);padding:2px 6px;border-radius:6px;font-size:.92em;color:#9FF0D2}

/* TOC */
.toc-panel{
  position:sticky;top:96px;
  background:rgba(14,21,19,.86);border:1px solid var(--line);border-radius:var(--r-panel);
  padding:22px 20px;box-shadow:var(--shadow-soft);
}
.toc-panel h2{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--neon);font-weight:700;margin-bottom:16px}
.toc-list{max-height:52vh;overflow:auto;display:flex;flex-direction:column;gap:2px}
.toc-item a{
  display:block;padding:7px 10px;border-radius:8px;border-left:2px solid transparent;
  font-size:13.5px;line-height:1.6;color:var(--muted);
}
.toc-item.toc-h3 a{padding-left:22px;font-size:13px}
.toc-item a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.toc-item a.is-current{color:var(--neon);border-left-color:var(--neon);background:rgba(43,230,166,.08)}
.toc-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);line-height:1.7}
.toc-note a{font-weight:700}

/* empty state */
.empty-state{
  max-width:820px;padding:56px 32px;text-align:center;
  background:rgba(14,21,19,.8);border:1px dashed var(--neon-line);border-radius:var(--r-panel);
}
.empty-state i{font-size:32px;color:var(--neon);margin-bottom:18px;display:block}
.empty-state h2{font-size:1.3rem;margin-bottom:12px}
.empty-state p{color:var(--muted);margin-bottom:22px}

/* assurance strip */
.assure{padding:0 0 88px}
.assure-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.assure-item{
  display:flex;gap:14px;align-items:flex-start;padding:22px;
  background:rgba(14,21,19,.72);border:1px solid var(--line);border-radius:var(--r-card);
  transition:all var(--ease);
}
.assure-item:hover{transform:translateY(-2px);border-color:var(--neon-line);box-shadow:var(--neon-glow)}
.assure-item i{font-size:18px;color:var(--neon);margin-top:3px}
.assure-item h3{font-size:15px;margin-bottom:6px}
.assure-item p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* related */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:rgba(14,21,19,.86);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--neon-line);box-shadow:var(--neon-glow)}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease}
.card:hover .card__media img{transform:scale(1.03)}
.card__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,10,.12),rgba(7,11,10,.72))}
.card__media .badge-pill{position:absolute;left:14px;top:14px;z-index:2}
.card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__body h3{font-size:16.5px;line-height:1.5}
.card__body p{font-size:13.8px;color:var(--muted);line-height:1.75}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);padding-top:6px}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0;
}
.faq .accordion-item:first-child{border-top:1px solid var(--line)}
.faq .accordion-header{margin:0}
.faq .accordion-button{
  background:transparent;color:var(--text);font-weight:700;font-size:16px;
  padding:22px 46px 22px 18px;border:0;box-shadow:none;border-left:2px solid transparent;
  transition:color var(--ease),border-color var(--ease);
}
.faq .accordion-button:not(.collapsed){color:var(--neon);border-left-color:var(--neon);background:rgba(43,230,166,.05)}
.faq .accordion-button:hover{color:var(--neon)}
.faq .accordion-button::after{
  background-image:none;
  content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;font-size:15px;
  width:auto;height:auto;transform:none;color:var(--neon);
  display:flex;align-items:center;justify-content:center;
  position:absolute;right:16px;top:50%;margin-top:-12px;
}
.faq .accordion-button:not(.collapsed)::after{content:"\f00d"}
.faq .accordion-body{padding:0 18px 24px 18px;color:var(--muted);font-size:15px;line-height:1.85}
.faq .accordion-body strong{color:var(--text-soft)}

/* CTA */
.cta-panel{
  position:relative;overflow:hidden;
  border:1px solid var(--neon-line);border-radius:var(--r-panel);
  background:
    radial-gradient(600px 320px at 88% 8%,rgba(43,230,166,.16),transparent 62%),
    radial-gradient(460px 280px at 4% 96%,rgba(139,124,255,.14),transparent 60%),
    linear-gradient(180deg,#101A17,#0B1210);
  box-shadow:var(--shadow);padding:52px 48px;
}
.cta-panel__grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:40px;align-items:center}
.cta-panel h2{font-size:clamp(1.6rem,2.6vw,2.15rem)}
.cta-panel p{margin-top:16px;color:#B8C4BF;max-width:56ch}
.cta-list{display:grid;gap:10px;margin-top:24px}
.cta-list li{display:flex;align-items:flex-start;gap:10px;color:#C8D2CE;font-size:14.5px}
.cta-list i{color:var(--neon);margin-top:5px;font-size:13px}
.cta-box{background:rgba(7,11,10,.72);border:1px solid var(--line);border-radius:var(--r-card);padding:26px}
.cta-box h3{font-size:17px;margin-bottom:8px}
.cta-box p{font-size:13.8px;color:var(--muted);margin-bottom:20px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* footer */
.site-footer{position:relative;background:#050908;border-top:1px solid var(--line);margin-top:8px}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:-1px;height:1px;background:linear-gradient(90deg,transparent,var(--neon-line),transparent)}
.footer-grid{display:grid;grid-template-columns:1.35fr .85fr .85fr 1fr;gap:40px;padding:64px 0 40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;margin-bottom:16px}
.site-footer p{color:var(--muted);font-size:14px;line-height:1.8;max-width:38ch}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:var(--text);margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:var(--muted);font-size:14px}
.footer-links a:hover{color:var(--neon)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding:22px 0 32px;border-top:1px solid var(--line);color:#7F8C87;font-size:13.5px;
}
.footer-bottom a{color:#9BA8A2}
.footer-bottom a:hover{color:var(--neon)}

@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .toc-panel{position:static;order:-1;max-width:820px}
  .toc-list{max-height:280px}
  .cta-panel__grid{grid-template-columns:minmax(0,1fr)}
  .assure-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .nav-menu{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:64px;gap:16px}
  .header-actions .btn{display:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px}
}
@media (max-width:767.98px){
  .article-hero{padding:36px 0 32px}
  .article-main{padding:44px 0 64px}
  .article-body{font-size:16.5px;line-height:1.88}
  .cta-panel{padding:34px 22px}
  .assure{padding-bottom:64px}
}
@media (max-width:575.98px){
  .wrap{padding:0 18px}
  .section{padding:56px 0}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .assure-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .article-head h1{font-size:1.72rem}
  .article-meta{gap:8px 16px;font-size:13px}
  .btn{padding:11px 20px;font-size:14.5px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .card:hover,.assure-item:hover,.btn:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --bg:#070B0A;
  --bg-1:#0E1513;
  --bg-2:#121B18;
  --text:#F4F7F5;
  --muted:#9BA8A2;
  --titan:#9AA8A2;
  --line:rgba(255,255,255,.08);
  --neon-line:rgba(43,230,166,.30);
  --mint:#2BE6A6;
  --mint-deep:#0d3a2b;
  --amber:#FFB020;
  --violet:#8B7CFF;
  --r-pill:999px;
  --r-card:12px;
  --r-panel:16px;
  --r-input:8px;
  --shadow-panel:0 20px 60px rgba(0,0,0,.35);
  --glow:0 0 0 1px rgba(43,230,166,.25),0 0 24px rgba(43,230,166,.18);
  --sect:96px;
  --bs-body-bg:var(--bg);
  --bs-body-color:var(--text);
  --bs-link-color:var(--mint);
  --bs-link-hover-color:#6ff5c6;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",Inter,system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--mint)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;font-weight:800;line-height:1.25}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px}
::selection{background:rgba(43,230,166,.28)}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;}
.btn-neon{background:var(--mint);color:#062018}
.btn-neon:hover{background:#41f0b6;color:#062018;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(43,230,166,.5),0 0 28px rgba(43,230,166,.38)}
.btn-amber{background:var(--amber);color:#241700}
.btn-amber:hover{background:#ffc251;color:#241700;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,176,32,.5),0 0 26px rgba(255,176,32,.32)}
.btn-line{border-color:var(--neon-line);color:var(--mint);background:rgba(43,230,166,.04)}
.btn-line:hover{background:rgba(43,230,166,.14);color:#8ffbcd;transform:translateY(-2px);box-shadow:var(--glow)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--neon-line);color:var(--mint);transform:translateY(-2px)}
.btn-sm{padding:9px 20px;font-size:14px}

/* ---------- 标签 / 徽章 ---------- */
.badge-soft,.badge-mint,.badge-amber,.badge-violet{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.badge-soft{background:rgba(154,168,162,.16);color:#C6D2CD}
.badge-mint{background:rgba(43,230,166,.14);color:var(--mint);border:1px solid var(--neon-line)}
.badge-amber{background:rgba(255,176,32,.16);color:var(--amber);border:1px solid rgba(255,176,32,.32)}
.badge-violet{background:rgba(139,124,255,.16);color:#B6ACFF;border:1px solid rgba(139,124,255,.32)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);font-size:12.5px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--mint);background:rgba(43,230,166,.06);border:1px solid var(--neon-line)}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(14,21,19,.94);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--neon-line)}
.header-inner{display:flex;align-items:center;gap:22px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand__mark{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:9px;
  background:rgba(43,230,166,.08);box-shadow:var(--glow)}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu .nav-link{position:relative;display:inline-block;padding:9px 15px;border-radius:var(--r-pill);font-size:15px;
  font-weight:600;color:var(--muted);transition:color .2s ease,background .2s ease}
.nav-menu .nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-menu .nav-link.is-active{color:var(--mint);background:rgba(43,230,166,.07)}
.nav-menu .nav-link.is-active::after{content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;border-radius:2px;
  background:var(--mint);box-shadow:0 0 12px rgba(43,230,166,.85)}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.02);cursor:pointer;padding:0 11px}
.burger span{display:block;height:2px;border-radius:2px;background:var(--mint);box-shadow:0 0 8px rgba(43,230,166,.6)}

/* ---------- 移动端抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:1200;display:flex;flex-direction:column;padding:22px 20px 28px;
  background:rgba(7,11,10,.98);backdrop-filter:blur(16px);transform:translateX(102%);visibility:hidden;
  transition:transform .3s ease,visibility .3s ease}
.drawer.is-open{transform:translateX(0);visibility:visible}
.drawer__top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer__close{width:42px;height:42px;border-radius:10px;border:1px solid var(--neon-line);background:rgba(43,230,166,.08);
  color:var(--mint);font-size:18px;cursor:pointer}
.drawer__menu{margin-top:22px;display:grid;gap:10px}
.drawer__menu .nav-link{display:block;padding:15px 18px;border-radius:10px;border-left:2px solid rgba(43,230,166,.22);
  background:rgba(255,255,255,.02);font-size:17px;font-weight:700;color:var(--muted)}
.drawer__menu .nav-link.is-active{color:var(--mint);border-left-color:var(--mint);background:rgba(43,230,166,.08)}
.drawer__foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line)}
.drawer__foot .btn{width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;isolation:isolate;padding:74px 0 70px}
.hero__bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.42;z-index:-2}
.hero__veil{position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(7,11,10,.62) 0%,rgba(7,11,10,.86) 55%,rgba(7,11,10,.98) 100%)}
.hero__veil::after{content:"";position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(43,230,166,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(43,230,166,.07) 1px,transparent 1px);
  background-size:64px 64px}
.hero__inner{position:relative;max-width:920px}
.crumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--muted);margin-bottom:22px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--mint)}
.crumb span{opacity:.4}
.hero h1{font-size:clamp(2rem,4.4vw,3.4rem);margin:18px 0 16px}
.hero__lead{max-width:720px;font-size:17px;color:#C9D4CF;line-height:1.85}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero__facts{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero__facts li{display:flex;align-items:baseline;gap:10px;padding:12px 20px;border-radius:var(--r-card);
  background:rgba(18,27,24,.72);border:1px solid var(--line);backdrop-filter:blur(6px)}
.hero__facts strong{font-size:20px;color:var(--mint);font-weight:800}
.hero__facts span{font-size:13.5px;color:var(--muted)}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.hero__inner > *{animation:rise .68s ease both}
.hero__inner > *:nth-child(2){animation-delay:.06s}
.hero__inner > *:nth-child(3){animation-delay:.12s}
.hero__inner > *:nth-child(4){animation-delay:.18s}
.hero__inner > *:nth-child(5){animation-delay:.24s}

/* ---------- 板块 ---------- */
.section{padding:var(--sect) 0}
.section--alt{background:linear-gradient(180deg,rgba(18,27,24,.55),rgba(7,11,10,0))}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(1.6rem,3vw,2.2rem);margin:16px 0 12px}
.section-head p{color:var(--muted);font-size:16px}

/* ---------- 步骤时间轴 ---------- */
.steps-layout{display:grid;grid-template-columns:minmax(0,1.68fr) minmax(0,1fr);gap:30px;align-items:start}
.timeline{position:relative}
.timeline::before{content:"";position:absolute;left:28px;top:14px;bottom:14px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(43,230,166,.6),rgba(43,230,166,.06))}
.step-card{position:relative;padding:24px 26px 22px 72px;margin-bottom:18px;background:var(--bg-1);
  border:1px solid var(--line);border-radius:var(--r-card);transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease}
.step-card:last-child{margin-bottom:0}
.step-card:hover{transform:translateY(-2px);border-color:var(--neon-line);box-shadow:var(--shadow-panel)}
.step-num{position:absolute;left:15px;top:24px;display:flex;align-items:center;justify-content:center;width:26px;height:26px;
  border-radius:50%;background:var(--bg);border:1px solid var(--neon-line);color:var(--mint);
  font-size:11.5px;font-weight:800;letter-spacing:.02em}
.step-card__head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px}
.step-card h3{font-size:20px}
.step-card p{color:var(--muted);font-size:15px;line-height:1.8}
.step-tip{display:flex;gap:9px;margin-top:14px;padding:12px 14px;border-radius:10px;font-size:14px;color:#C6D2CD;
  background:rgba(43,230,166,.05);border-left:2px solid var(--neon-line)}
.step-tip i{color:var(--mint);margin-top:4px}

.side-notes{position:sticky;top:96px;display:grid;gap:16px}
.aside-card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-panel);padding:22px}
.aside-card h3{font-size:17px;display:flex;align-items:center;gap:9px;margin-bottom:14px}
.aside-card h3 i{color:var(--mint);font-size:15px}
.note-list{display:grid;gap:14px}
.note-list li{padding-left:14px;border-left:2px solid rgba(255,255,255,.09);font-size:14.5px;color:var(--muted);line-height:1.75}
.note-list li strong{display:block;color:var(--text);font-size:14.5px;margin-bottom:2px}
.aside-card--amber{border-color:rgba(255,176,32,.28);background:linear-gradient(160deg,rgba(255,176,32,.08),rgba(18,27,24,.9))}
.aside-card--amber h3 i{color:var(--amber)}

/* ---------- 设备与入口 ---------- */
.device-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:42px;align-items:center}
.device-copy h2{font-size:clamp(1.6rem,3vw,2.1rem);margin:16px 0 14px}
.device-copy p{color:var(--muted);font-size:16px;line-height:1.85}
.entry-list{display:grid;gap:12px;margin:24px 0 28px}
.entry-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:#C9D4CF}
.entry-list i{color:var(--mint);margin-top:5px}
.phone-frame{padding:12px;border-radius:28px;border:1px solid var(--neon-line);
  background:linear-gradient(170deg,#111a17,#0a100e);box-shadow:var(--shadow-panel)}
.phone-frame__img{position:relative;overflow:hidden;border-radius:20px}
.phone-frame__img img{aspect-ratio:3/4;object-fit:cover;width:100%;transition:transform .5s ease}
.phone-frame__img::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,10,.06),rgba(7,11,10,.55))}
.phone-frame:hover .phone-frame__img img{transform:scale(1.03)}
.phone-frame__bar{display:flex;align-items:center;justify-content:space-between;padding:14px 8px 4px;font-size:13px;color:var(--muted)}

/* ---------- 提示含义条 ---------- */
.hint-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.hint-card{display:flex;gap:14px;padding:20px;border-radius:var(--r-card);background:var(--bg-1);
  border:1px solid var(--line);transition:border-color .24s ease,transform .24s ease}
.hint-card:hover{border-color:var(--neon-line);transform:translateY(-2px)}
.hint-card i{font-size:18px;color:var(--mint);margin-top:6px}
.hint-card h3{font-size:16.5px;margin-bottom:6px}
.hint-card p{font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq .accordion-item:first-of-type{border-top:1px solid var(--line)}
.faq .accordion-button{position:relative;background:transparent;box-shadow:none;color:var(--text);font-size:17px;font-weight:700;
  padding:22px 52px 22px 20px;border-left:2px solid transparent;border-radius:0;transition:background .24s ease,color .24s ease,border-color .24s ease}
.faq .accordion-button:not(.collapsed){color:var(--mint);background:rgba(43,230,166,.05);border-left-color:var(--mint)}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq .accordion-button:not(.collapsed):focus{border-left-color:var(--mint)}
.faq .accordion-button::after{position:absolute;right:20px;top:50%;transform:translateY(-50%);width:16px;height:16px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 2v12M2 8h12' stroke='%232BE6A6' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
  background-size:16px 16px;transition:transform .24s ease}
.faq .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(180deg);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M2 8h12' stroke='%232BE6A6' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E")}
.faq .accordion-body{padding:4px 26px 24px 22px;color:var(--muted);font-size:15px;line-height:1.85}
.faq .accordion-body strong{color:var(--text)}
.faq-more{margin-top:26px;font-size:14.5px;color:var(--muted)}
.faq-more a{color:var(--mint);border-bottom:1px solid var(--neon-line)}

/* ---------- 底部 CTA ---------- */
.cta-panel{position:relative;overflow:hidden;display:grid;grid-template-columns:1.45fr .55fr;gap:32px;align-items:center;
  padding:46px;border-radius:var(--r-panel);border:1px solid var(--neon-line);
  background:linear-gradient(135deg,rgba(43,230,166,.10),rgba(139,124,255,.09) 58%,rgba(7,11,10,0))}
.cta-panel::before{content:"";position:absolute;inset:0;opacity:.22;pointer-events:none;
  background:radial-gradient(520px 240px at 88% 12%,rgba(255,176,32,.28),transparent 70%)}
.cta-panel h2{font-size:clamp(1.5rem,2.6vw,2rem);margin-bottom:12px}
.cta-panel p{color:#C6D2CD;font-size:15.5px;line-height:1.8;max-width:640px}
.cta-panel__actions{display:grid;gap:12px;position:relative}
.cta-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.cta-meta span{display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;color:#C6D2CD;background:rgba(255,255,255,.04);border:1px solid var(--line)}
.cta-meta i{color:var(--mint)}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:var(--sect);padding:58px 0 26px;background:#050908;border-top:1px solid var(--neon-line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;margin-bottom:14px}
.footer-brand .brand__mark{background:rgba(43,230,166,.08)}
.site-footer p{color:var(--muted);font-size:14.5px;line-height:1.8;max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-links{display:grid;gap:11px}
.footer-links a{color:var(--muted);font-size:14.5px;transition:color .2s ease,text-shadow .2s ease}
.footer-links a:hover{color:var(--mint);text-shadow:0 0 12px rgba(43,230,166,.5)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:38px;padding-top:18px;border-top:1px solid var(--line);color:#8D9B96;font-size:13.5px}
.footer-bottom a{color:var(--mint)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--sect:84px}
  .steps-layout{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
}
@media (max-width:991.98px){
  :root{--sect:72px}
  .nav-menu{display:none}
  .burger{display:flex}
  .header-inner{height:64px;gap:14px}
  .brand{font-size:16.5px}
  .header-right .btn{display:none}
  .hero{padding:56px 0 54px}
  .steps-layout{grid-template-columns:minmax(0,1fr)}
  .side-notes{position:static}
  .device-grid{grid-template-columns:minmax(0,1fr);gap:30px}
  .hint-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:34px}
  .cta-panel__actions{max-width:340px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:575.98px){
  :root{--sect:56px}
  body{font-size:16px}
  .wrap{padding:0 16px}
  .hero{padding:44px 0 46px}
  .hero__lead{font-size:16px}
  .hero__actions .btn{width:100%}
  .hero__facts{gap:10px}
  .hero__facts li{flex:1 1 100%}
  .section-head{margin-bottom:32px}
  .step-card{padding:20px 18px 18px 58px}
  .timeline::before{left:22px}
  .step-num{left:9px;top:20px}
  .hint-row{grid-template-columns:minmax(0,1fr)}
  .faq .accordion-button{font-size:15.5px;padding:18px 46px 18px 16px}
  .faq .accordion-body{padding:2px 18px 20px 18px;font-size:14.5px}
  .cta-panel{padding:26px 20px}
  .cta-panel__actions .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* roulang page: category2 */
:root{
  --neon:#2BE6A6;
  --neon-dim:rgba(43,230,166,.14);
  --amber:#FFB020;
  --violet:#8B7CFF;
  --ti:#9AA8A2;
  --bg:#070B0A;
  --bg-1:#0E1513;
  --bg-2:#121B18;
  --text:#F4F7F5;
  --muted:#9BA8A2;
  --line:rgba(255,255,255,.08);
  --line-neon:rgba(43,230,166,.30);
  --r-btn:999px;
  --r-card:12px;
  --r-panel:16px;
  --r-input:8px;
  --shadow:0 20px 60px rgba(0,0,0,.35);
  --glow:0 0 0 1px rgba(43,230,166,.25), 0 0 24px rgba(43,230,166,.18);
  --ff:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --ff-num:"Inter","DIN Alternate","Helvetica Neue",Arial,sans-serif;
  --sp:96px;
  --wrap:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--ff);
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
a:hover{color:var(--neon)}
button{font-family:inherit}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:4px}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:var(--sp) 0}
.section--tight{padding:72px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--neon);font-weight:700;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--neon);border-radius:2px}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{font-size:clamp(1.7rem,3vw,2.25rem);margin:14px 0 14px}
.sec-head p{color:var(--muted);font-size:16.5px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(14,21,19,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-neon);
}
.header-inner{
  height:72px;display:flex;align-items:center;gap:28px;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.01em}
.brand__mark{display:inline-flex;filter:drop-shadow(0 0 10px rgba(43,230,166,.45))}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-block;
  padding:22px 14px;font-size:15px;font-weight:600;color:#C9D6D1;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;
  background:var(--neon);border-radius:2px;transform:scaleX(0);
  transition:transform .22s ease;box-shadow:0 0 12px rgba(43,230,166,.7);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--neon)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(43,230,166,.08);border:1px solid var(--line-neon);
  color:var(--neon);font-size:18px;align-items:center;justify-content:center;
}
.menu-toggle:hover{background:rgba(43,230,166,.16)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-weight:700;font-size:15px;padding:12px 24px;
  transition:all .2s ease;cursor:pointer;line-height:1;
}
.btn-neon{background:var(--neon);color:#06120E;box-shadow:0 0 0 1px rgba(43,230,166,.35)}
.btn-neon:hover{color:#06120E;filter:brightness(1.08);box-shadow:0 0 0 1px rgba(43,230,166,.5),0 8px 28px rgba(43,230,166,.32);transform:translateY(-2px)}
.btn-outline-neon{background:transparent;color:var(--neon);border-color:var(--line-neon)}
.btn-outline-neon:hover{background:rgba(43,230,166,.12);color:var(--neon);box-shadow:var(--glow);transform:translateY(-2px)}
.btn-amber{background:var(--amber);color:#1A1200}
.btn-amber:hover{color:#1A1200;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 8px 26px rgba(255,176,32,.3)}
.btn-ghost{background:transparent;color:var(--text);padding:12px 4px}
.btn-ghost i{color:var(--neon);transition:transform .2s ease}
.btn-ghost:hover i{transform:translateX(4px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:15px 30px;font-size:16px}
.btn:disabled,.btn.is-loading{opacity:.6;pointer-events:none}

/* ---------- badges ---------- */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:rgba(154,168,162,.14);color:#C6D2CD;border:1px solid var(--line);
}
.badge-neon{background:rgba(43,230,166,.14);color:var(--neon);border-color:var(--line-neon)}
.badge-amber{background:rgba(255,176,32,.14);color:var(--amber);border-color:rgba(255,176,32,.3)}
.badge-violet{background:rgba(139,124,255,.16);color:#B4A9FF;border-color:rgba(139,124,255,.32)}

/* ---------- hero ---------- */
.hero{position:relative;padding:76px 0 60px;overflow:hidden}
.hero__bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  filter:saturate(.9);
}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,10,.82) 0%,rgba(7,11,10,.92) 55%,var(--bg) 100%);
}
.hero__grid{
  position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 70%);
}
.hero__inner{position:relative;z-index:2}
.hero h1{
  font-size:clamp(2rem,4.4vw,3.35rem);
  margin:18px 0 18px;max-width:16em;
}
.hero__sub{color:#C9D6D1;font-size:17px;max-width:44em;line-height:1.8}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.tier-tabs{
  display:flex;gap:12px;margin-top:42px;overflow-x:auto;padding-bottom:6px;
  scrollbar-width:thin;
}
.tier-tabs::-webkit-scrollbar{height:5px}
.tier-tabs::-webkit-scrollbar-thumb{background:rgba(43,230,166,.3);border-radius:4px}
.tier-pill{
  flex:0 0 auto;display:flex;align-items:center;gap:10px;
  padding:11px 20px;border-radius:999px;border:1px solid var(--line);
  background:rgba(18,27,24,.75);font-size:14.5px;font-weight:700;color:#D6E1DC;
  transition:all .2s ease;
}
.tier-pill span.dot{width:8px;height:8px;border-radius:50%;background:var(--ti)}
.tier-pill[data-tier="free"] span.dot{background:var(--ti)}
.tier-pill[data-tier="standard"] span.dot{background:var(--neon)}
.tier-pill[data-tier="pro"] span.dot{background:var(--amber)}
.tier-pill[data-tier="ultimate"] span.dot{background:var(--violet)}
.tier-pill:hover{border-color:var(--line-neon);color:#fff;transform:translateY(-2px);box-shadow:var(--glow)}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.bento-card{
  background:linear-gradient(160deg,var(--bg-2) 0%,var(--bg-1) 100%);
  border:1px solid var(--line);border-radius:var(--r-panel);
  padding:28px;position:relative;overflow:hidden;transition:border-color .22s ease,transform .22s ease;
}
.bento-card::before{
  content:"";position:absolute;top:0;left:0;width:56px;height:2px;background:var(--neon);
  opacity:.7;
}
.bento-card:hover{border-color:var(--line-neon);transform:translateY(-2px)}
.bento-card h3{font-size:20px;margin-bottom:12px}
.bento-card p{color:var(--muted);font-size:15px}
.bento--a{grid-column:span 7}
.bento--b{grid-column:span 5}
.bento--c{grid-column:span 4}
.bento--d{grid-column:span 4}
.bento--e{grid-column:span 4}
.mini-list{margin-top:18px;display:grid;gap:12px}
.mini-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 14px;border-radius:10px;background:rgba(255,255,255,.03);
  border:1px solid var(--line);font-size:14.5px;color:#C9D6D1;
}
.mini-list i{color:var(--neon);margin-top:3px}
.stat-row{display:flex;flex-wrap:wrap;gap:28px;margin-top:22px}
.stat b{display:block;font-family:var(--ff-num);font-size:30px;color:var(--neon);letter-spacing:-.02em}
.stat span{font-size:13.5px;color:var(--muted)}
.bento-media{
  margin-top:18px;border-radius:12px;overflow:hidden;position:relative;
  border:1px solid var(--line);
}
.bento-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.bento-media:hover img{transform:scale(1.03)}

/* ---------- compare table ---------- */
.table-shell{
  border:1px solid var(--line);border-radius:var(--r-panel);overflow:hidden;
  background:var(--bg-1);
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.scroll-hint{display:none;font-size:13px;color:var(--muted);padding:10px 2px 0}
table.compare{
  width:100%;border-collapse:separate;border-spacing:0;min-width:880px;
  background:transparent;color:var(--text);margin:0;
}
table.compare thead th{
  position:sticky;top:0;z-index:3;
  background:#101917;
  padding:22px 18px;text-align:center;vertical-align:bottom;
  border-bottom:1px solid var(--line);font-weight:800;
}
table.compare thead th:first-child{text-align:left;width:220px;left:0;z-index:4}
.th-tier{display:block;font-size:17px;margin-bottom:6px}
.th-price{display:block;font-family:var(--ff-num);font-size:13.5px;color:var(--muted);font-weight:600}
table.compare th.is-featured{
  background:linear-gradient(180deg,rgba(43,230,166,.14),rgba(16,25,23,.95));
  box-shadow:inset 1px 0 0 var(--line-neon),inset -1px 0 0 var(--line-neon);
}
table.compare th.is-featured .th-tier{color:var(--neon)}
table.compare tbody td{
  padding:17px 18px;text-align:center;font-size:15px;
  border-bottom:1px solid var(--line);color:#DCE6E1;
}
table.compare tbody td.row-head{
  text-align:left;color:#B9C7C1;font-weight:600;
  position:sticky;left:0;background:#0C1311;z-index:2;
}
table.compare tbody tr:hover td{background:rgba(255,255,255,.028)}
table.compare tbody tr:hover td.is-featured{background:rgba(43,230,166,.09)}
table.compare td.is-featured{
  background:rgba(43,230,166,.05);
  box-shadow:inset 1px 0 0 var(--line-neon),inset -1px 0 0 var(--line-neon);
}
table.compare tbody tr:last-child td{border-bottom:none}
.yes{color:var(--neon);font-size:16px}
.no{color:#5C6A65}
.reco-flag{
  display:inline-block;margin-left:8px;padding:2px 9px;border-radius:999px;
  font-size:11.5px;font-weight:800;background:var(--amber);color:#1A1200;vertical-align:2px;
}

/* ---------- tier cards ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tier-card{
  display:flex;flex-direction:column;
  background:linear-gradient(170deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);border-radius:var(--r-panel);padding:26px;
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.tier-card:hover{border-color:var(--line-neon);transform:translateY(-2px)}
.tier-card.is-reco{
  transform:scale(1.03);
  border-color:var(--line-neon);
  box-shadow:var(--glow);
}
.tier-card.is-reco:hover{transform:scale(1.03) translateY(-2px)}
.tier-card .price{font-family:var(--ff-num);font-size:30px;font-weight:800;margin:14px 0 4px;letter-spacing:-.02em}
.tier-card .price small{font-size:13.5px;color:var(--muted);font-weight:600}
.tier-card ul{margin:20px 0 24px;display:grid;gap:11px}
.tier-card li{display:flex;gap:10px;font-size:14.5px;color:#C9D6D1;line-height:1.6}
.tier-card li i{color:var(--neon);margin-top:5px;font-size:12px}
.tier-card .btn{margin-top:auto;width:100%}
.tier-free .badge-soft{color:#C6D2CD}
.tier-standard{border-top:2px solid var(--neon)}
.tier-pro{border-top:2px solid var(--amber)}
.tier-ultimate{border-top:2px solid var(--violet)}

/* ---------- preview cards ---------- */
.preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.p-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  display:flex;flex-direction:column;
}
.p-card:hover{border-color:var(--line-neon);transform:translateY(-2px);box-shadow:0 18px 40px rgba(0,0,0,.4)}
.p-media{position:relative;overflow:hidden;background:#0A0F0E}
.p-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.p-card:hover .p-media img{transform:scale(1.03)}
.p-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,10,.05),rgba(7,11,10,.75));
  transition:opacity .25s ease;
}
.p-card:hover .p-media::after{opacity:.7}
.p-lock{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  z-index:2;color:#EAF3EF;font-size:22px;opacity:.85;
  text-shadow:0 0 18px rgba(0,0,0,.7);
}
.p-tags{position:absolute;left:14px;top:14px;z-index:3;display:flex;gap:8px;flex-wrap:wrap}
.p-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.p-body h3{font-size:17px;line-height:1.45}
.p-body p{font-size:14.5px;color:var(--muted)}
.p-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:#8D9B96;border-top:1px solid var(--line);padding-top:13px;
}
.p-meta i{color:var(--neon)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  position:relative;padding:26px 22px;border-radius:var(--r-panel);
  background:linear-gradient(160deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);transition:border-color .22s ease,transform .22s ease;
}
.step:hover{border-color:var(--line-neon);transform:translateY(-2px)}
.step__no{
  font-family:var(--ff-num);font-size:13px;font-weight:800;color:var(--neon);
  letter-spacing:.18em;margin-bottom:12px;display:block;
}
.step h3{font-size:17.5px;margin-bottom:10px}
.step p{font-size:14.5px;color:var(--muted)}
.step::after{
  content:"";position:absolute;right:-11px;top:50px;width:22px;height:1px;
  background:linear-gradient(90deg,var(--line-neon),transparent);
}
.step:last-child::after{display:none}

/* ---------- faq ---------- */
.accordion-item{
  background:transparent;border:none;border-bottom:1px solid var(--line);
}
.accordion-item:first-of-type{border-top:1px solid var(--line)}
.accordion-button{
  background:transparent;color:var(--text);font-weight:700;font-size:17px;
  padding:22px 46px 22px 18px;border:none;box-shadow:none;
  border-left:2px solid transparent;transition:all .22s ease;
}
.accordion-button:not(.collapsed){
  color:var(--neon);background:rgba(43,230,166,.05);
  border-left-color:var(--neon);box-shadow:none;
}
.accordion-button:focus{box-shadow:none;border-color:var(--line)}
.accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-size:15px;color:var(--neon);transition:transform .24s ease;
  width:auto;height:auto;
}
.accordion-button:not(.collapsed)::after{content:"\f00d";transform:translateY(-50%) rotate(0deg)}
.accordion-body{
  padding:0 18px 24px 18px;color:var(--muted);font-size:15.5px;line-height:1.8;
  border-left:2px solid transparent;
}
.accordion-item:has(.accordion-button:not(.collapsed)) .accordion-body{border-left-color:rgba(43,230,166,.25)}

/* ---------- cta form ---------- */
.cta-panel{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line-neon);
  background:linear-gradient(140deg,#101B18 0%,#0A1110 100%);
  padding:44px;box-shadow:var(--shadow);
  display:grid;grid-template-columns:1.05fr .95fr;gap:44px;
}
.cta-panel::before{
  content:"";position:absolute;top:-120px;right:-80px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,230,166,.22),transparent 65%);
}
.cta-panel h2{font-size:clamp(1.6rem,2.6vw,2.1rem);margin-bottom:16px}
.cta-panel p{color:var(--muted);font-size:15.5px}
.cta-sum{display:flex;gap:20px;flex-wrap:wrap;margin-top:24px}
.cta-sum b{display:block;font-family:var(--ff-num);color:var(--neon);font-size:22px}
.cta-sum span{font-size:13px;color:var(--muted)}
.form-card{
  position:relative;z-index:2;background:rgba(7,11,10,.6);
  border:1px solid var(--line);border-radius:var(--r-panel);padding:26px;
}
.form-label{display:block;font-size:13.5px;color:#B9C7C1;font-weight:600;margin-bottom:8px}
.form-control,.form-select{
  background:#0A1110;border:1px solid var(--line);color:var(--text);
  border-radius:var(--r-input);padding:12px 14px;font-size:15px;width:100%;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control::placeholder{color:#6C7A75}
.form-control:focus,.form-select:focus{
  background:#0A1110;color:var(--text);border-color:var(--neon);
  box-shadow:0 0 0 3px rgba(43,230,166,.16);outline:none;
}
.form-row{display:grid;gap:16px;margin-bottom:16px}
.form-row--code{grid-template-columns:1fr 128px;gap:12px;align-items:end}
.code-btn{
  height:44px;border-radius:var(--r-input);border:1px solid var(--line-neon);
  background:rgba(43,230,166,.08);color:var(--neon);font-size:14px;font-weight:700;
  cursor:pointer;transition:all .2s ease;
}
.code-btn:hover{background:rgba(43,230,166,.18)}
.form-check{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted);margin:16px 0 18px}
.form-check input{margin-top:4px;accent-color:var(--neon);width:16px;height:16px}
.form-msg{font-size:13.5px;color:var(--amber);min-height:20px;margin-top:10px}
.tier-radio{display:flex;gap:10px;flex-wrap:wrap}
.tier-radio label{
  position:relative;cursor:pointer;padding:9px 18px;border-radius:999px;
  border:1px solid var(--line);background:#0A1110;font-size:14px;font-weight:600;color:#C9D6D1;
  transition:all .2s ease;
}
.tier-radio input{position:absolute;opacity:0;pointer-events:none}
.tier-radio input:checked + span{color:#06120E}
.tier-radio label:has(input:checked){
  background:var(--neon);color:#06120E;border-color:var(--neon);
  box-shadow:0 0 18px rgba(43,230,166,.28);
}

/* ---------- breadcrumb ---------- */
.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13.5px;color:var(--muted)}
.crumb a{color:#C9D6D1}
.crumb a:hover{color:var(--neon)}
.crumb i{font-size:10px;opacity:.6}
.crumb .current{color:var(--neon)}

/* ---------- footer ---------- */
.site-footer{
  background:#050908;border-top:1px solid var(--line-neon);padding:72px 0 28px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;margin-bottom:16px}
.site-footer p{color:var(--muted);font-size:14.5px;max-width:34em}
.footer-col h4{font-size:15px;margin-bottom:16px;color:#E4EDE9}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:14.5px;color:var(--muted);transition:color .18s ease}
.footer-links a:hover{color:var(--neon)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:13.5px;color:#8D9B96;
}
.footer-bottom a{color:var(--neon)}

/* ---------- offcanvas ---------- */
.offcanvas.offcanvas-end{background:#0A1110;border-left:1px solid var(--line-neon);width:300px}
.offcanvas-header{border-bottom:1px solid var(--line)}
.offcanvas-title{font-weight:800;font-size:16px}
.offcanvas-body{padding:20px}
.m-nav{display:grid;gap:6px;margin-bottom:26px}
.m-nav a{
  display:flex;align-items:center;gap:12px;padding:14px 14px;border-radius:10px;
  font-size:16px;font-weight:600;color:#D6E1DC;border-left:2px solid transparent;
}
.m-nav a::before{content:"";width:2px;height:18px;background:var(--line-neon);border-radius:2px}
.m-nav a:hover,.m-nav a.is-active{background:rgba(43,230,166,.08);color:var(--neon);border-left-color:var(--neon)}
.btn-close{filter:invert(1) grayscale(1) brightness(2)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  :root{--sp:80px}
  .tier-grid{grid-template-columns:repeat(2,1fr)}
  .tier-card.is-reco{transform:none}
  .tier-card.is-reco:hover{transform:translateY(-2px)}
  .preview-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none}
}
@media (max-width:991px){
  :root{--sp:72px}
  .nav-menu,.header-actions .btn{display:none}
  .menu-toggle{display:inline-flex}
  .header-inner{height:64px}
  .bento--a,.bento--b,.bento--c,.bento--d,.bento--e{grid-column:span 6}
  .cta-panel{grid-template-columns:1fr;gap:30px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .scroll-hint{display:block}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .hero{padding:56px 0 44px}
  .bento--a,.bento--b,.bento--c,.bento--d,.bento--e{grid-column:span 12}
  .tier-grid,.preview-grid,.steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .sec-head{margin-bottom:32px}
  .form-row--code{grid-template-columns:1fr}
  .stat-row{gap:20px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .hero__cta{flex-direction:column;align-items:stretch}
  .hero__cta .btn{width:100%}
  .bento-card{padding:22px}
  .cta-panel{padding:24px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none !important;animation:none !important}
  .btn:hover,.p-card:hover,.bento-card:hover,.step:hover,.tier-card:hover{transform:none !important}
}