/* roulang page: index */
:root{
  --bg-base:#070B12;
  --bg-elev-1:#0C131F;
  --bg-elev-2:#121B2A;
  --glass-bg:rgba(150,200,255,.06);
  --glass-bg-strong:rgba(150,200,255,.10);
  --stroke:rgba(160,200,255,.14);
  --stroke-strong:rgba(160,200,255,.28);
  --c-primary:#2FE0C8;
  --c-primary-deep:#17B8A4;
  --c-accent:#7B61FF;
  --c-cta:#FF8A3D;
  --t-1:#EAF2FF;
  --t-2:#A8B8CC;
  --t-3:#6B7C93;
  --r-card:18px;
  --r-btn:12px;
  --r-input:12px;
  --r-pill:999px;
  --sh-1:0 8px 30px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(47,224,200,.35), 0 10px 30px rgba(47,224,200,.22);
  --tr:.25s cubic-bezier(.2,.7,.3,1);
  --container:1320px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg-base);
  background-image:
    radial-gradient(900px 520px at 10% -10%, rgba(47,224,200,.10), transparent 62%),
    radial-gradient(760px 460px at 92% 2%, rgba(123,97,255,.10), transparent 60%);
  background-repeat:no-repeat;
  color:var(--t-1);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;background:var(--bg-elev-2);}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr),opacity var(--tr);}
a:hover{color:#5BF0DC;}
button{font-family:inherit;}
h1,h2,h3,h4{line-height:1.3;margin:0 0 .6em;font-weight:700;letter-spacing:.2px;}
h1{font-size:clamp(28px,4.4vw,50px);}
h2{font-size:clamp(22px,2.6vw,33px);}
h3{font-size:clamp(18px,1.6vw,21px);font-weight:600;}
p{margin:0 0 1.15em;color:var(--t-2);}
ul,ol{margin:0 0 1.2em;padding-left:1.25em;color:var(--t-2);}
li{margin-bottom:.45em;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(47,224,200,.28);color:#fff;}

.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.wrap{max-width:1400px;}}
.section{padding:104px 0;position:relative;}
.section.tight{padding:76px 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:44px;}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-primary);letter-spacing:2px;text-transform:uppercase;margin-bottom:12px;}
.section-head .eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,transparent,var(--c-primary));}
.section-title{margin:0;font-size:clamp(22px,2.6vw,33px);}
.section-desc{margin:10px 0 0;max-width:720px;color:var(--t-2);font-size:15.5px;}
.hairline{height:1px;border:0;background:linear-gradient(90deg,transparent,var(--stroke-strong),transparent);margin:0;}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--c-primary);}
.text-link i{transition:transform var(--tr);}
.text-link:hover i{transform:translateX(4px);}

/* ---------- 按钮 ---------- */
.btn-c{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all var(--tr);white-space:nowrap;}
.btn-cta{background:var(--c-cta);color:#1A0E04;box-shadow:0 10px 26px rgba(255,138,61,.28);}
.btn-cta:hover{background:#FFA05F;color:#1A0E04;transform:translateY(-1px);box-shadow:0 14px 32px rgba(255,138,61,.4);}
.btn-primary-c{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));color:#04201C;}
.btn-primary-c:hover{color:#04201C;transform:translateY(-1px);box-shadow:var(--sh-glow);}
.btn-glass-c{background:var(--glass-bg);border:1px solid var(--stroke);color:var(--t-1);backdrop-filter:blur(10px);}
.btn-glass-c:hover{border-color:var(--stroke-strong);background:var(--glass-bg-strong);color:#fff;transform:translateY(-1px);}
.btn-ghost-c{background:transparent;color:var(--c-primary);border:0;padding:8px 4px;font-weight:600;}
.btn-ghost-c:hover{color:#5BF0DC;}
.btn-sm-c{padding:8px 16px;font-size:13.5px;border-radius:10px;}
.btn-c:active{transform:scale(.98);}
.btn-c[disabled],.btn-c.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 导航 ---------- */
.site-header{position:fixed;inset:0 0 auto 0;z-index:1030;transition:background var(--tr),border-color var(--tr),box-shadow var(--tr),backdrop-filter var(--tr);border-bottom:1px solid transparent;}
.site-header.is-solid{background:rgba(9,14,23,.82);backdrop-filter:blur(16px);border-bottom-color:var(--stroke);box-shadow:0 14px 40px rgba(0,0,0,.45);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.brand{display:flex;align-items:center;gap:11px;color:var(--t-1);font-weight:700;font-size:16.5px;letter-spacing:.3px;}
.brand:hover{color:var(--t-1);}
.brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(140deg,rgba(47,224,200,.22),rgba(123,97,255,.22));border:1px solid var(--stroke-strong);color:var(--c-primary);font-size:16px;box-shadow:inset 0 0 18px rgba(47,224,200,.18);}
.brand-text{white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;}
.main-nav .nav-link{position:relative;padding:9px 14px;border-radius:var(--r-pill);font-size:14.5px;color:var(--t-2);font-weight:500;transition:all var(--tr);}
.main-nav .nav-link:hover{color:var(--t-1);background:var(--glass-bg);}
.main-nav .nav-link.active{color:var(--c-primary);background:rgba(47,224,200,.10);box-shadow:inset 0 0 0 1px rgba(47,224,200,.25);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;background:var(--glass-bg);border:1px solid var(--stroke);color:var(--t-1);font-size:16px;}
.mobile-drawer{position:fixed;inset:0;z-index:1050;background:rgba(6,10,17,.98);backdrop-filter:blur(14px);transform:translateX(100%);transition:transform var(--tr);display:flex;flex-direction:column;padding:22px;overflow-y:auto;}
.mobile-drawer.open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{width:42px;height:42px;border-radius:12px;background:var(--glass-bg);border:1px solid var(--stroke);color:var(--t-1);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:22px;}
.drawer-nav a{min-height:48px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-radius:14px;border:1px solid transparent;color:var(--t-1);font-size:15.5px;}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--glass-bg);border-color:var(--stroke);color:var(--c-primary);}
.drawer-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--stroke);color:var(--t-3);font-size:13.5px;}
.drawer-foot strong{display:block;color:var(--t-2);font-weight:600;margin-bottom:6px;}
body.no-scroll{overflow:hidden;}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:88vh;max-height:860px;display:flex;align-items:center;padding:132px 0 92px;overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.62;}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(7,11,18,.96) 0%,rgba(7,11,18,.82) 42%,rgba(7,11,18,.55) 100%);}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,18,.85) 0%,rgba(7,11,18,.35) 40%,rgba(7,11,18,.95) 100%);}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;}
.hero-badge{display:inline-flex;align-items:center;gap:9px;padding:7px 15px;border-radius:var(--r-pill);background:var(--glass-bg);border:1px solid var(--stroke);font-size:13px;color:var(--c-primary);margin-bottom:22px;}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 12px var(--c-primary);}
.hero h1{margin-bottom:20px;}
.hero h1 .hl{background:linear-gradient(120deg,var(--c-primary),var(--c-accent));-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{font-size:clamp(16px,1.5vw,18px);color:var(--t-2);max-width:560px;margin-bottom:30px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.trust-row{display:flex;flex-wrap:wrap;gap:26px;padding-top:24px;border-top:1px solid var(--stroke);}
.trust-item{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--t-2);}
.trust-item i{color:var(--c-primary);font-size:15px;}
.hero-note{margin:22px 0 0;font-size:13.5px;color:var(--t-3);}
.hero-note a{color:var(--t-2);text-decoration:underline;text-decoration-color:rgba(160,200,255,.35);text-underline-offset:4px;}
.hero-note a:hover{color:var(--c-primary);}

.login-card{position:relative;background:var(--glass-bg-strong);backdrop-filter:blur(20px);border:1px solid var(--stroke);border-radius:22px;padding:28px;box-shadow:var(--sh-1),0 0 0 1px rgba(47,224,200,.16),0 24px 60px rgba(0,0,0,.5);}
.login-card::before{content:"";position:absolute;top:0;left:24px;right:24px;height:1px;background:linear-gradient(90deg,transparent,rgba(47,224,200,.75),transparent);}
.login-card h2{font-size:19px;margin-bottom:6px;}
.login-card .card-note{font-size:13.5px;color:var(--t-3);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--t-2);margin-bottom:8px;font-weight:500;}
.field .control{position:relative;}
.field .control i{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--t-3);font-size:14px;}
.field input,.field select,.field textarea{width:100%;background:rgba(6,10,17,.72);border:1px solid var(--stroke);border-radius:var(--r-input);padding:13px 15px 13px 42px;color:var(--t-1);font-size:15px;transition:all var(--tr);}
.field textarea{padding-left:15px;min-height:120px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--t-3);}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(47,224,200,.18);background:rgba(6,10,17,.9);}
.check-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:4px 0 20px;font-size:13.5px;color:var(--t-3);}
.check-row label{display:flex;align-items:center;gap:8px;cursor:pointer;color:var(--t-2);}
.check-row input[type=checkbox]{width:16px;height:16px;accent-color:var(--c-primary);}
.login-card .btn-c{width:100%;}
.login-foot{margin:16px 0 0;text-align:center;font-size:13.5px;color:var(--t-3);}
.login-foot a{color:var(--t-2);}
.login-foot a:hover{color:var(--c-primary);}

/* ---------- 卖点 ---------- */
.adv-grid{display:grid;grid-template-columns:1.28fr 1fr;gap:24px;}
.adv-card{position:relative;background:var(--bg-elev-1);border:1px solid var(--stroke);border-radius:var(--r-card);padding:30px;transition:all var(--tr);overflow:hidden;}
.adv-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(47,224,200,.7),rgba(123,97,255,.35),transparent);opacity:.8;}
.adv-card:hover{transform:translateY(-4px);border-color:var(--stroke-strong);box-shadow:var(--sh-1);}
.adv-num{font-size:13px;font-weight:700;letter-spacing:2px;color:var(--c-primary);margin-bottom:16px;display:block;}
.adv-icon{width:50px;height:50px;border-radius:14px;display:grid;place-items:center;background:var(--glass-bg);border:1px solid var(--stroke);color:var(--c-primary);font-size:19px;margin-bottom:18px;}
.adv-card h3{margin-bottom:10px;}
.adv-card p{margin-bottom:16px;font-size:15px;}
.adv-wide{grid-column:1 / -1;display:flex;align-items:center;gap:28px;background:linear-gradient(110deg,var(--bg-elev-2),var(--bg-elev-1));}
.adv-wide .adv-icon{flex:0 0 50px;margin-bottom:0;}
.adv-wide .adv-body h3{margin-bottom:8px;}
.adv-wide .adv-body p{margin-bottom:0;}
.adv-line{height:1px;background:linear-gradient(90deg,var(--stroke-strong),transparent);margin:18px 0;}

/* ---------- 场景 ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.steps{position:relative;padding-left:34px;}
.steps::before{content:"";position:absolute;left:11px;top:12px;bottom:14px;width:1px;background:linear-gradient(180deg,var(--c-primary),rgba(47,224,200,.08));}
.step{position:relative;padding-bottom:28px;}
.step:last-child{padding-bottom:0;}
.step-num{position:absolute;left:-34px;top:2px;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;background:var(--bg-base);border:1px solid var(--c-primary);color:var(--c-primary);font-size:12px;font-weight:700;box-shadow:0 0 14px rgba(47,224,200,.35);}
.step h3{font-size:17px;margin-bottom:6px;}
.step p{font-size:14.5px;margin:0;}
.device-frame{position:relative;border-radius:22px;border:1px solid var(--stroke);background:var(--bg-elev-2);padding:14px;box-shadow:var(--sh-1),inset 0 0 40px rgba(0,0,0,.55);}
.device-frame .screen{border-radius:14px;overflow:hidden;position:relative;aspect-ratio:2/1;}
.device-frame .screen img{width:100%;height:100%;object-fit:cover;}
.device-frame .screen::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,18,.05),rgba(7,11,18,.75));}
.device-cap{display:flex;align-items:center;justify-content:space-between;padding:14px 6px 4px;font-size:13.5px;color:var(--t-3);}
.device-cap strong{color:var(--t-2);font-weight:600;}

.pill-tabs{display:flex;flex-wrap:wrap;gap:10px;margin:46px 0 26px;}
.pill-tab{padding:9px 20px;border-radius:var(--r-pill);border:1px solid var(--stroke);background:var(--glass-bg);color:var(--t-2);font-size:14px;cursor:pointer;transition:all var(--tr);}
.pill-tab:hover{color:var(--t-1);border-color:var(--stroke-strong);}
.pill-tab.active{background:rgba(47,224,200,.12);border-color:rgba(47,224,200,.45);color:var(--c-primary);}
.tab-panel{display:none;background:var(--bg-elev-1);border:1px solid var(--stroke);border-radius:var(--r-card);padding:30px;}
.tab-panel.active{display:block;}
.tab-panel h3{margin-bottom:12px;}
.tab-panel ul{margin-bottom:0;}

/* ---------- 最新信息 ---------- */
.news-card{display:block;height:100%;background:var(--bg-elev-1);border:1px solid var(--stroke);border-radius:var(--r-card);overflow:hidden;transition:all var(--tr);color:var(--t-1);}
.news-card:hover{transform:translateY(-4px);border-color:var(--stroke-strong);box-shadow:var(--sh-1);color:var(--t-1);}
.news-card .thumb{aspect-ratio:16/9;overflow:hidden;position:relative;background:var(--bg-elev-2);}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.3,1);}
.news-card:hover .thumb img{transform:scale(1.05);}
.news-body{padding:22px;}
.badge-cat{display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);font-size:12px;color:#C3B6FF;background:rgba(123,97,255,.14);border:1px solid rgba(123,97,255,.35);margin-bottom:14px;}
.news-card h3{font-size:17px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card .excerpt{font-size:14.5px;color:var(--t-2);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t-3);padding-top:14px;border-top:1px solid var(--stroke);}
.news-meta span{display:inline-flex;align-items:center;gap:6px;}
.empty-state{text-align:center;padding:66px 24px;border:1px dashed var(--stroke-strong);border-radius:var(--r-card);background:var(--bg-elev-1);}
.empty-state .ico{width:56px;height:56px;margin:0 auto 16px;border-radius:16px;display:grid;place-items:center;background:var(--glass-bg);border:1px solid var(--stroke);color:var(--t-3);font-size:20px;}
.empty-state p{color:var(--t-2);margin-bottom:18px;}

/* ---------- 社会认同 ---------- */
.stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--stroke);border:1px solid var(--stroke);border-radius:var(--r-card);overflow:hidden;backdrop-filter:blur(12px);margin-bottom:40px;}
.stat-item{background:rgba(10,16,26,.88);padding:30px 24px;text-align:center;}
.stat-item .num{font-size:clamp(26px,2.6vw,34px);font-weight:700;color:var(--c-primary);letter-spacing:.5px;}
.stat-item .lbl{font-size:13.5px;color:var(--t-3);margin-top:6px;}
.review-card{height:100%;background:var(--glass-bg);border:1px solid var(--stroke);border-radius:var(--r-card);padding:26px;transition:all var(--tr);}
.review-card:hover{border-color:var(--stroke-strong);transform:translateY(-4px);}
.review-top{display:flex;align-items:center;gap:13px;margin-bottom:16px;}
.avatar{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:15px;color:#04201C;background:linear-gradient(135deg,var(--c-primary),var(--c-accent));}
.review-top .who strong{display:block;font-size:14.5px;color:var(--t-1);}
.review-top .who span{font-size:12.5px;color:var(--t-3);}
.stars{color:#FFC46B;font-size:13px;letter-spacing:2px;margin-bottom:10px;}
.review-card p{font-size:14.5px;margin:0;}
.tag-wall{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px;}
.tag-wall span{padding:9px 18px;border-radius:var(--r-pill);border:1px solid var(--stroke);color:var(--t-3);font-size:13.5px;background:rgba(255,255,255,.02);transition:all var(--tr);}
.tag-wall span:hover{color:var(--c-primary);border-color:rgba(47,224,200,.4);background:rgba(47,224,200,.06);}

/* ---------- FAQ ---------- */
.faq-shell{background:var(--glass-bg);border:1px solid var(--stroke);border-radius:var(--r-card);padding:12px 28px;backdrop-filter:blur(12px);}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--stroke);}
.accordion-item:last-child{border-bottom:0;}
.accordion-button{background:transparent;color:var(--t-1);font-size:16.5px;font-weight:600;padding:22px 44px 22px 34px;box-shadow:none;position:relative;transition:color var(--tr);}
.accordion-button::before{content:"?";position:absolute;left:0;top:22px;width:22px;height:22px;border-radius:7px;display:grid;place-items:center;font-size:12px;color:var(--c-primary);background:rgba(47,224,200,.10);border:1px solid rgba(47,224,200,.28);font-weight:700;}
.accordion-button::after{content:"+";background-image:none;font-size:22px;line-height:1;color:var(--c-primary);transform:rotate(0);transition:transform var(--tr);position:absolute;right:6px;width:auto;height:auto;font-weight:400;}
.accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;box-shadow:none;}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-button:focus{box-shadow:none;outline:2px solid rgba(47,224,200,.5);outline-offset:-2px;}
.accordion-body{padding:0 44px 24px 34px;color:var(--t-2);font-size:14.8px;}

/* ---------- CTA ---------- */
.cta-block{position:relative;overflow:hidden;border:1px solid var(--stroke);border-radius:24px;background:var(--bg-elev-2);padding:56px;}
.cta-block::before{content:"";position:absolute;inset:0;background:
  radial-gradient(520px 300px at 12% 20%, rgba(47,224,200,.16), transparent 62%),
  radial-gradient(460px 280px at 88% 90%, rgba(123,97,255,.16), transparent 60%);}
.cta-block::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(160,200,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(160,200,255,.05) 1px,transparent 1px);background-size:48px 48px;opacity:.6;}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-inner h2{margin-bottom:10px;}
.cta-inner p{margin:0;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:40px;border-top:1px solid transparent;background:linear-gradient(180deg,rgba(10,16,26,.4),rgba(7,11,18,.95));position:relative;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--stroke-strong),transparent);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:72px 0 48px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14.5px;max-width:340px;}
.footer-col h4{font-size:15px;color:var(--t-1);margin-bottom:18px;font-weight:600;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:11px;}
.footer-col a{color:var(--t-2);font-size:14.5px;}
.footer-col a:hover{color:var(--c-primary);}
.footer-contact li{display:flex;gap:10px;color:var(--t-2);font-size:14.5px;}
.footer-contact i{color:var(--c-primary);margin-top:5px;font-size:13px;}
.footer-bottom{border-top:1px solid var(--stroke);padding:22px 0 30px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--t-3);}
.footer-bottom a{color:var(--t-3);}
.footer-bottom a:hover{color:var(--c-primary);}

/* ---------- 底部固定转化条 ---------- */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:1040;display:none;align-items:center;justify-content:space-between;gap:14px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(9,14,23,.9);backdrop-filter:blur(16px);border-top:1px solid var(--stroke);opacity:0;transform:translateY(100%);transition:all var(--tr);}
.sticky-cta.show{opacity:1;transform:translateY(0);}
.sticky-cta span{font-size:13.5px;color:var(--t-2);}

@media (max-width:1199px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero{min-height:auto;max-height:none;padding:126px 0 78px;}
  .scene{grid-template-columns:1fr;gap:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:991px){
  .main-nav,.nav-actions .btn-cta{display:none;}
  .nav-toggle{display:inline-grid;place-items:center;}
  .section{padding:72px 0;}
  .section.tight{padding:56px 0;}
  .adv-grid{grid-template-columns:1fr;}
  .adv-wide{flex-direction:column;align-items:flex-start;gap:18px;}
  .stats-bar{grid-template-columns:1fr 1fr;}
  .sticky-cta{display:flex;}
  body{padding-bottom:74px;}
  .cta-block{padding:38px 26px;}
  .faq-shell{padding:6px 18px;}
  .accordion-button{padding:18px 40px 18px 32px;}
  .accordion-body{padding:0 20px 20px 32px;}
}
@media (max-width:767px){
  .wrap{padding:0 16px;}
  .hero{padding:112px 0 60px;}
  .hero-cta .btn-c{width:100%;}
  .trust-row{gap:16px;}
  .review-list{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;}
  .review-list > div{min-width:280px;scroll-snap-align:start;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:52px 0 32px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-c{width:100%;}
  .tag-wall{gap:9px;}
}
@media (max-width:575px){
  body{font-size:15.5px;}
  .section{padding:56px 0;}
  .login-card{padding:22px;}
  .tab-panel{padding:22px;}
  .stats-bar{grid-template-columns:1fr 1fr;}
  .stat-item{padding:22px 14px;}
  .news-body{padding:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg-base:#070B12;--bg-elev-1:#0C131F;--bg-elev-2:#121B2A;
  --glass-bg:rgba(150,200,255,.06);--glass-bg-strong:rgba(150,200,255,.10);
  --stroke:rgba(160,200,255,.14);--stroke-strong:rgba(160,200,255,.28);
  --c-primary:#2FE0C8;--c-primary-deep:#17B8A4;--c-accent:#7B61FF;--c-cta:#FF8A3D;
  --t-1:#EAF2FF;--t-2:#A8B8CC;--t-3:#6B7C93;
  --r-card:18px;--r-btn:12px;--r-input:12px;--r-pill:999px;
  --sh-1:0 8px 30px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(47,224,200,.35),0 10px 30px rgba(47,224,200,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-base);color:var(--t-1);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(620px 420px at 10% 6%,rgba(47,224,200,.10),transparent 70%),
    radial-gradient(720px 520px at 90% 18%,rgba(123,97,255,.10),transparent 70%),
    linear-gradient(rgba(160,200,255,.035) 1px,transparent 1px) 0 0/100% 64px,
    linear-gradient(90deg,rgba(160,200,255,.035) 1px,transparent 1px) 0 0/64px 100%;
}
img{max-width:100%;display:block;border:0}
figure{margin:0}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease)}
a:hover{color:var(--c-primary)}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:8px}
.wrap{max-width:1320px;margin:0 auto;padding:0 24px;position:relative;z-index:2}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease),backdrop-filter .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(9,14,24,.86);
  backdrop-filter:blur(16px);
  border-bottom-color:var(--stroke);
  box-shadow:0 12px 34px rgba(0,0,0,.45);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--t-1);letter-spacing:.2px}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;font-size:15px;
  background:linear-gradient(140deg,rgba(47,224,200,.22),rgba(123,97,255,.26));
  border:1px solid var(--stroke-strong);color:var(--c-primary);
}
.brand-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  padding:9px 14px;border-radius:var(--r-pill);font-size:15px;color:var(--t-2);
  border:1px solid transparent;transition:all .25s var(--ease);
}
.nav-link:hover{color:var(--t-1);background:var(--glass-bg);border-color:var(--stroke)}
.nav-link.active{color:var(--c-primary);background:rgba(47,224,200,.10);border-color:rgba(47,224,200,.28)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;place-items:center;
  background:var(--glass-bg);border:1px solid var(--stroke);color:var(--t-1);font-size:16px;
}

/* ---------- 按钮 ---------- */
.btn-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
}
.btn-c:hover{transform:translateY(-1px)}
.btn-c:active{transform:scale(.98)}
.btn-cta{background:linear-gradient(135deg,#FF9A55,#FF7A26);color:#1A0E04;box-shadow:0 10px 26px rgba(255,138,61,.28)}
.btn-cta:hover{color:#1A0E04;box-shadow:0 14px 34px rgba(255,138,61,.42)}
.btn-primary-c{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));color:#04201C;box-shadow:0 10px 26px rgba(47,224,200,.22)}
.btn-primary-c:hover{color:#04201C;box-shadow:var(--sh-glow)}
.btn-ghost-c{background:var(--glass-bg);border-color:var(--stroke);color:var(--t-1)}
.btn-ghost-c:hover{background:var(--glass-bg-strong);border-color:var(--stroke-strong);color:var(--t-1)}
.btn-sm-c{padding:9px 16px;font-size:14px}

/* ---------- 页头/文章头 ---------- */
.page-top{position:relative;padding-top:76px;overflow:hidden}
.page-top::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.30;
}
.page-top::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(95deg,rgba(7,11,18,.97) 0%,rgba(7,11,18,.76) 48%,rgba(7,11,18,.95) 100%),
             linear-gradient(180deg,rgba(7,11,18,.55) 0%,rgba(7,11,18,1) 100%);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--t-3);padding-top:26px}
.crumb a{color:var(--t-3)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{opacity:.55}
.crumb .cur{color:var(--t-2);font-weight:600;max-width:min(560px,60vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{padding:24px 0 48px}
.badge-c{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.3px;border:1px solid;line-height:1.6;
}
.badge-cat{color:#BCADFF;border-color:rgba(123,97,255,.42);background:rgba(123,97,255,.14)}
.badge-soft{color:var(--c-primary);border-color:rgba(47,224,200,.32);background:rgba(47,224,200,.10)}
.article-title{
  font-size:clamp(28px,4vw,48px);line-height:1.32;font-weight:700;
  margin:18px 0 0;max-width:1000px;letter-spacing:-.2px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:22px;font-size:13.5px;color:var(--t-3)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--c-primary);font-size:13px}
.share-btn{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  background:var(--glass-bg);border:1px solid var(--stroke);color:var(--t-2);font-size:13px;
  transition:all .25s var(--ease);
}
.share-btn:hover{color:var(--c-primary);border-color:rgba(47,224,200,.4)}
.share-btn.is-done{color:#04201C;background:var(--c-primary);border-color:var(--c-primary)}
.article-cover{
  margin-top:30px;border-radius:var(--r-card);overflow:hidden;position:relative;
  border:1px solid var(--stroke);box-shadow:var(--sh-1);background:var(--bg-elev-2);
}
.article-cover img{width:100%;aspect-ratio:2/1;object-fit:cover}
.article-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,0) 55%,rgba(7,11,18,.55) 100%);
}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,820px) 280px;
  gap:48px;justify-content:center;padding:56px 0 24px;align-items:start;
}
.article-main{min-width:0}
.article-body{font-size:17px;line-height:1.9;color:var(--t-2);word-break:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.25em}
.article-body h2{
  position:relative;font-size:clamp(22px,2.4vw,30px);font-weight:700;color:var(--t-1);
  line-height:1.35;margin:2em 0 .8em;padding-left:16px;scroll-margin-top:104px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--c-primary),rgba(47,224,200,0));
  box-shadow:0 0 12px rgba(47,224,200,.55);
}
.article-body h3{font-size:20px;font-weight:600;color:var(--t-1);margin:1.6em 0 .6em;scroll-margin-top:104px}
.article-body blockquote{
  margin:1.5em 0;padding:14px 18px;background:var(--glass-bg);
  border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;color:var(--t-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.25em}
.article-body li{margin:.45em 0}
.article-body img{border-radius:12px;margin:1.5em 0;border:1px solid var(--stroke)}
.article-body a{color:var(--c-primary);text-decoration:underline;text-decoration-color:rgba(47,224,200,.45);text-underline-offset:3px}
.article-body a:hover{text-decoration-color:var(--c-primary)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.5em 0}
.article-body th,.article-body td{border:1px solid var(--stroke);padding:10px 14px;text-align:left}
.article-body th{background:var(--bg-elev-2);color:var(--t-1);font-weight:600}
.article-body tr:nth-child(even) td{background:rgba(150,200,255,.03)}
.article-body hr{border:0;border-top:1px solid var(--stroke);margin:2em 0}

/* ---------- 目录 ---------- */
.toc-panel{
  position:sticky;top:104px;align-self:start;
  background:var(--glass-bg);border:1px solid var(--stroke);border-radius:var(--r-card);
  padding:20px 16px;backdrop-filter:blur(12px);
}
.toc-title{
  margin:0 0 12px;font-size:12px;letter-spacing:.16em;color:var(--t-3);font-weight:600;
}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:58vh;overflow:auto;scrollbar-width:thin}
.toc-link{
  display:block;padding:8px 10px;font-size:14px;line-height:1.55;color:var(--t-2);
  border-left:2px solid transparent;border-radius:0 8px 8px 0;transition:all .25s var(--ease);
}
.toc-link:hover{color:var(--t-1);background:var(--glass-bg)}
.toc-link.is-active{color:var(--c-primary);border-left-color:var(--c-primary);background:rgba(47,224,200,.08)}

/* ---------- 标签 / 空态 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:28px;border-top:1px solid var(--stroke)}
.tag-c{
  padding:6px 14px;border-radius:var(--r-pill);font-size:13px;color:var(--t-2);
  border:1px solid var(--stroke);background:var(--glass-bg);transition:all .25s var(--ease);
}
.tag-c:hover{color:var(--c-primary);border-color:rgba(47,224,200,.4);background:rgba(47,224,200,.08)}
.empty-state{
  max-width:560px;padding:64px 24px;text-align:center;background:var(--bg-elev-1);
  border:1px solid var(--stroke);border-radius:var(--r-card);
}
.empty-state i{font-size:32px;color:var(--t-3)}
.empty-state p{margin:16px 0 22px;color:var(--t-2);font-size:16px}

/* ---------- 继续阅读 ---------- */
.related{padding:64px 0 72px;border-top:1px solid var(--stroke)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;margin:0;color:var(--t-1)}
.section-head p{margin:8px 0 0;color:var(--t-3);font-size:14px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card-c{
  display:block;height:100%;background:var(--bg-elev-1);border:1px solid var(--stroke);
  border-radius:var(--r-card);overflow:hidden;position:relative;
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.card-c::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(47,224,200,0),rgba(47,224,200,.8),rgba(123,97,255,0));
  opacity:.7;
}
.card-c:hover{transform:translateY(-4px);border-color:var(--stroke-strong);box-shadow:var(--sh-1);color:inherit}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-elev-2);position:relative}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card-c:hover .card-thumb img{transform:scale(1.04)}
.card-body{padding:20px}
.card-body h3{font-size:18px;font-weight:600;margin:0 0 10px;color:var(--t-1);line-height:1.45}
.card-body p{margin:0;font-size:14px;line-height:1.8;color:var(--t-3)}

/* ---------- CTA ---------- */
.cta-band{
  padding:80px 0;border-top:1px solid var(--stroke);border-bottom:1px solid var(--stroke);
  background:
    radial-gradient(560px 320px at 18% 30%,rgba(47,224,200,.13),transparent 70%),
    radial-gradient(520px 300px at 82% 70%,rgba(123,97,255,.12),transparent 70%),
    var(--bg-elev-1);
}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;margin:0 0 10px;color:var(--t-1)}
.cta-inner p{margin:0;color:var(--t-2);font-size:15px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;z-index:1;background:var(--bg-base);border-top:1px solid var(--stroke)}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:32px;padding:64px 0 40px}
.footer-brand p{margin:16px 0 0;max-width:360px;font-size:14px;line-height:1.8;color:var(--t-3)}
.footer-col h4{margin:0 0 16px;font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--t-1)}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--t-3)}
.footer-col a:hover{color:var(--c-primary)}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;line-height:1.75;color:var(--t-3)}
.footer-contact i{color:var(--c-primary);margin-top:5px;font-size:13px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 0 32px;border-top:1px solid var(--stroke);font-size:13px;color:var(--t-3);
}
.footer-bottom a{color:var(--t-2)}
.footer-bottom a:hover{color:var(--c-primary)}

/* ---------- 移动端固定转化条 ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:110;display:none;
  align-items:center;justify-content:space-between;gap:12px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(12,19,31,.94);backdrop-filter:blur(14px);
  border-top:1px solid var(--stroke-strong);
  opacity:0;transform:translateY(100%);pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.sticky-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto}
.sticky-cta p{margin:0;font-size:13px;color:var(--t-2);line-height:1.5}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,860px);gap:0}
  .toc-panel{display:none}
  .wrap{padding:0 22px}
}
@media (max-width:991.98px){
  .main-nav{
    position:fixed;top:0;left:0;right:0;bottom:0;z-index:130;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:96px 24px 32px;background:rgba(7,11,18,.985);
    transform:translateX(100%);visibility:hidden;overflow-y:auto;
    transition:transform .32s var(--ease),visibility .32s var(--ease);
  }
  .main-nav.is-open{transform:translateX(0);visibility:visible}
  .main-nav .nav-link{
    display:flex;align-items:center;height:48px;font-size:17px;padding:0 16px;
    border-radius:14px;background:var(--glass-bg);border-color:var(--stroke);
  }
  .nav-actions .btn-c{display:none}
  .nav-toggle{display:grid;position:relative;z-index:140}
  .sticky-cta{display:flex}
  body{padding-bottom:64px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .article-head{padding:20px 0 40px}
}
@media (max-width:767.98px){
  .wrap{padding:0 16px}
  .nav-inner{height:68px}
  .page-top{padding-top:68px}
  .grid-3{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px}
  .article-cover img{aspect-ratio:16/9}
  .article-body{font-size:16px}
  .cta-band{padding:56px 0}
  .cta-actions{width:100%}
  .cta-actions .btn-c{flex:1 1 auto}
  .related{padding:52px 0 60px}
}
@media (max-width:575.98px){
  .brand-text{font-size:15px;max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .article-title{font-size:26px}
  .card-body{padding:16px}
  .article-meta{gap:14px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --bg-base:#070B12;
  --bg-elev-1:#0C131F;
  --bg-elev-2:#121B2A;
  --glass-bg:rgba(150,200,255,.06);
  --glass-bg-strong:rgba(150,200,255,.10);
  --stroke:rgba(160,200,255,.14);
  --stroke-strong:rgba(160,200,255,.28);
  --c-primary:#2FE0C8;
  --c-primary-deep:#17B8A4;
  --c-accent:#7B61FF;
  --c-cta:#FF8A3D;
  --t-1:#EAF2FF;
  --t-2:#A8B8CC;
  --t-3:#6B7C93;
  --r-card:18px;
  --r-btn:12px;
  --r-input:12px;
  --r-pill:999px;
  --sh-1:0 8px 30px rgba(0,0,0,.45);
  --sh-2:0 18px 48px rgba(0,0,0,.55);
  --sh-glow:0 0 0 1px rgba(47,224,200,.35), 0 10px 30px rgba(47,224,200,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --wrap:1320px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--t-2);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(160,200,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(160,200,255,.045) 1px,transparent 1px);
  background-size:64px 64px,64px 64px;
  mask-image:radial-gradient(circle at 50% 0%,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,rgba(0,0,0,.9),transparent 78%);
}
h1,h2,h3,h4{color:var(--t-1);font-weight:700;line-height:1.3;margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:clamp(28px,4.4vw,48px)}
h2{font-size:clamp(22px,2.6vw,32px)}
h3{font-size:clamp(18px,1.6vw,21px)}
p{margin:0 0 1.15em}
a{color:var(--c-primary);text-decoration:none;transition:color .25s var(--ease),opacity .25s var(--ease)}
a:hover{color:var(--t-1)}
img{max-width:100%;display:block;background:var(--bg-elev-2)}
ul,ol{margin:0 0 1.2em;padding-left:1.15em}
li{margin-bottom:.5em}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:4px}
::selection{background:rgba(47,224,200,.28);color:#fff}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;position:relative;z-index:2}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1040;
  padding:14px 0;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease),padding .3s var(--ease);
}
.site-header.is-stuck{
  padding:10px 0;
  background:rgba(9,14,23,.86);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--stroke);
  box-shadow:0 10px 34px rgba(0,0,0,.5);
}
.nav-inner{display:flex;align-items:center;gap:24px;justify-content:space-between}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t-1);font-weight:700;font-size:17px;letter-spacing:.2px}
.brand:hover{color:var(--t-1)}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:linear-gradient(140deg,rgba(47,224,200,.24),rgba(123,97,255,.28));
  border:1px solid var(--stroke-strong);
  color:var(--c-primary);
  font-size:15px;
  box-shadow:0 0 0 1px rgba(47,224,200,.12),0 6px 18px rgba(47,224,200,.16);
}
.brand-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:9px 14px;
  border-radius:var(--r-pill);
  color:var(--t-2);
  font-size:15px;
  font-weight:500;
  transition:color .25s var(--ease),background .25s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--c-primary),rgba(47,224,200,0));
  opacity:0;
  transform:scaleX(.4);
  transform-origin:left;
  transition:opacity .25s var(--ease),transform .25s var(--ease);
}
.nav-link:hover{color:var(--t-1);background:var(--glass-bg)}
.nav-link:hover::after{opacity:.6;transform:scaleX(1)}
.nav-link.active{color:var(--c-primary);background:rgba(47,224,200,.10)}
.nav-link.active::after{opacity:1;transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--glass-bg);
  border:1px solid var(--stroke);
  color:var(--t-1);
  font-size:16px;
  cursor:pointer;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.nav-toggle:hover{border-color:var(--stroke-strong);background:var(--glass-bg-strong)}
.nav-drawer-foot{
  display:none;
  flex-direction:column;
  gap:14px;
  margin-top:26px;
  padding-top:22px;
  border-top:1px solid var(--stroke);
}
.drawer-note{font-size:13px;color:var(--t-3);line-height:1.7}

/* ---------- buttons ---------- */
.btn-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  font-weight:600;
  font-size:15px;
  padding:13px 24px;
  border:1px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:transform .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease),color .25s var(--ease);
}
.btn-cta{
  background:linear-gradient(135deg,var(--c-cta),#ff6d1f);
  color:#1B0E03;
  box-shadow:0 10px 26px rgba(255,138,61,.28);
}
.btn-cta:hover{color:#1B0E03;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,138,61,.5),0 14px 34px rgba(255,138,61,.38)}
.btn-primary-c{
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));
  color:#04211D;
  box-shadow:var(--sh-glow);
}
.btn-primary-c:hover{color:#04211D;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(47,224,200,.5),0 14px 34px rgba(47,224,200,.34)}
.btn-ghost-c{
  background:var(--glass-bg);
  border-color:var(--stroke);
  color:var(--t-1);
}
.btn-ghost-c:hover{color:var(--t-1);border-color:var(--stroke-strong);background:var(--glass-bg-strong);transform:translateY(-1px)}
.btn-link-c{
  background:transparent;border:none;color:var(--c-primary);padding:6px 0;font-weight:600;
  border-bottom:1px solid rgba(47,224,200,.4);border-radius:0;
}
.btn-link-c:hover{color:var(--t-1);border-bottom-color:var(--t-1)}
.btn-sm-c{padding:9px 18px;font-size:14px;border-radius:11px}
.btn-block-c{width:100%}
.btn-c:active{transform:scale(.98)}
.btn-c:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px}

/* ---------- badges / pills ---------- */
.badge-c{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  letter-spacing:.4px;
  border:1px solid var(--stroke);
  background:var(--glass-bg);
  color:var(--t-2);
}
.badge-violet{border-color:rgba(123,97,255,.42);background:rgba(123,97,255,.14);color:#C3B6FF}
.badge-mint{border-color:rgba(47,224,200,.42);background:rgba(47,224,200,.12);color:var(--c-primary)}
.badge-cta{border-color:rgba(255,138,61,.42);background:rgba(255,138,61,.14);color:#FFC08D}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:150px 0 68px;
  min-height:360px;
  background-image:
    linear-gradient(100deg,rgba(7,11,18,.95) 0%,rgba(7,11,18,.72) 48%,rgba(7,11,18,.42) 100%),
    linear-gradient(180deg,rgba(7,11,18,.55) 0%,rgba(7,11,18,.92) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--stroke);
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-10%;top:-30%;
  width:640px;height:640px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.14),transparent 68%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center;position:relative;z-index:3}
.hero-copy h1{margin-bottom:14px}
.hero-lead{font-size:17px;color:var(--t-2);max-width:560px;margin-bottom:22px}
.anchor-pills{display:flex;flex-wrap:wrap;gap:10px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 17px;
  border-radius:var(--r-pill);
  border:1px solid var(--stroke);
  background:var(--glass-bg);
  color:var(--t-2);
  font-size:14px;
  font-weight:500;
  transition:border-color .25s var(--ease),color .25s var(--ease),background .25s var(--ease),transform .25s var(--ease);
}
.pill i{color:var(--c-primary);font-size:12px}
.pill:hover{color:var(--t-1);border-color:var(--stroke-strong);background:var(--glass-bg-strong);transform:translateY(-2px)}
.hero-media{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--stroke);
  box-shadow:var(--sh-2),inset 0 0 0 1px rgba(255,255,255,.03);
  background:var(--bg-elev-2);
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-crumb{margin-top:26px;font-size:13px;color:var(--t-3);position:relative;z-index:3}
.hero-crumb a{color:var(--t-3)}
.hero-crumb a:hover{color:var(--c-primary)}
.hero-crumb span.sep{margin:0 8px;opacity:.55}
.hero-crumb strong{color:var(--t-2);font-weight:600}

/* ---------- section basics ---------- */
.section{padding:96px 0;position:relative}
.section-divider{
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(160,200,255,.22),transparent);
}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head .badge-c{margin-bottom:14px}
.sec-head p{font-size:16px;color:var(--t-2);margin-bottom:0}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- stats strip ---------- */
.stats-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;
  background:var(--stroke);
  border:1px solid var(--stroke);
  border-radius:var(--r-card);
  overflow:hidden;
  background-color:var(--bg-elev-1);
}
.stat-item{background:var(--bg-elev-1);padding:26px 22px}
.stat-item .num{display:block;font-size:30px;font-weight:600;color:var(--c-primary);line-height:1.2}
.stat-item .num small{font-size:14px;color:var(--t-3);margin-left:6px;font-weight:500}
.stat-item .lbl{display:block;font-size:14px;color:var(--t-3);margin-top:6px}

/* ---------- main layout with sticky side nav ---------- */
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.side-nav{
  position:sticky;
  top:112px;
  padding:24px 22px;
  border-radius:var(--r-card);
  border:1px solid var(--stroke);
  background:var(--glass-bg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.side-title{font-size:15px;letter-spacing:.06em;color:var(--t-3);text-transform:uppercase;font-weight:600;margin-bottom:16px}
.side-link{
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--t-2);
  border:1px solid transparent;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.side-link .idx{font-size:12px;color:var(--t-3);font-weight:600}
.side-link:hover{background:var(--glass-bg-strong);color:var(--t-1)}
.side-link.active{color:var(--c-primary);background:rgba(47,224,200,.10);border-color:rgba(47,224,200,.28)}
.side-link.active .idx{color:var(--c-primary)}
.side-nav .btn-c{margin-top:18px}

/* ---------- alternating blocks ---------- */
.block-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:44px;
  align-items:center;
  padding:44px 0;
  border-top:1px solid var(--stroke);
}
.block-row:first-of-type{border-top:none;padding-top:0}
.block-row.reverse .block-figure{order:-1}
.block-index{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;color:var(--c-accent);
  letter-spacing:.14em;
  margin-bottom:12px;
}
.block-index::before{
  content:"";
  width:26px;height:1px;
  background:linear-gradient(90deg,var(--c-accent),transparent);
}
.block-body h2{margin-bottom:14px}
.block-body > p{font-size:16px}
.block-figure{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--stroke);
  background:var(--bg-elev-2);
  box-shadow:var(--sh-1);
  position:relative;
}
.block-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.block-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 18px;
  font-size:13px;
  color:var(--t-2);
  background:linear-gradient(180deg,transparent,rgba(7,11,18,.92));
}

/* ---------- step list ---------- */
.step-list{list-style:none;padding:0;margin:22px 0 0;counter-reset:step}
.step-list li{
  position:relative;
  padding-left:52px;
  margin-bottom:20px;
}
.step-list li:last-child{margin-bottom:0}
.step-list li::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:2px;
  width:34px;height:34px;
  display:flex;align-items:center;justify-content:center;
  border-radius:11px;
  font-size:13px;font-weight:600;
  color:var(--c-primary);
  background:rgba(47,224,200,.10);
  border:1px solid rgba(47,224,200,.30);
}
.step-list li strong{display:block;color:var(--t-1);font-size:16px;font-weight:600;margin-bottom:3px}
.step-list li span{font-size:14.5px;color:var(--t-2);line-height:1.8}

/* ---------- check table ---------- */
.table-shell{
  border:1px solid var(--stroke);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--bg-elev-1);
}
.table-scroll{overflow-x:auto}
table.check-table{width:100%;border-collapse:collapse;min-width:680px}
table.check-table th{
  text-align:left;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--t-3);
  font-weight:600;
  padding:16px 20px;
  background:rgba(150,200,255,.05);
  border-bottom:1px solid var(--stroke);
  white-space:nowrap;
}
table.check-table td{
  padding:16px 20px;
  font-size:14.5px;
  color:var(--t-2);
  border-bottom:1px solid rgba(160,200,255,.08);
  vertical-align:top;
}
table.check-table tbody tr:nth-child(even) td{background:rgba(150,200,255,.035)}
table.check-table tbody tr:last-child td{border-bottom:none}
table.check-table td:first-child{color:var(--t-1);font-weight:600;white-space:nowrap}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:var(--bg-elev-1);
  border:1px solid var(--stroke);
  border-radius:var(--r-card)!important;
  margin-bottom:14px;
  overflow:hidden;
}
.faq-acc .accordion-button{
  background:transparent;
  color:var(--t-1);
  font-weight:600;
  font-size:16.5px;
  padding:20px 22px;
  box-shadow:none!important;
  gap:14px;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary);background:rgba(47,224,200,.06)}
.faq-acc .accordion-button::after{
  background-image:none;
  content:"+";
  width:26px;height:26px;
  flex:0 0 26px;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;
  font-weight:400;
  color:var(--c-primary);
  border:1px solid rgba(47,224,200,.32);
  border-radius:9px;
  transition:transform .25s var(--ease);
  transform:none!important;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg)!important}
.faq-acc .accordion-body{
  padding:2px 22px 22px;
  font-size:15px;
  color:var(--t-2);
  line-height:1.9;
}
.faq-foot{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:26px;padding-top:22px;
  border-top:1px solid var(--stroke);
  font-size:14.5px;color:var(--t-3);
}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;
  border-radius:24px;
  border:1px solid var(--stroke-strong);
  background:
    radial-gradient(circle at 12% 20%,rgba(47,224,200,.16),transparent 58%),
    radial-gradient(circle at 88% 80%,rgba(123,97,255,.18),transparent 60%),
    linear-gradient(140deg,var(--bg-elev-2),var(--bg-elev-1));
  padding:52px 48px;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(160,200,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(160,200,255,.05) 1px,transparent 1px);
  background-size:44px 44px,44px 44px;
  pointer-events:none;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;position:relative;z-index:2}
.cta-inner h2{margin-bottom:10px}
.cta-inner p{margin-bottom:0;font-size:16px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0}

/* ---------- related cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.topic-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-card);
  border:1px solid var(--stroke);
  background:var(--bg-elev-1);
  overflow:hidden;
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.topic-card:hover{transform:translateY(-4px);border-color:var(--stroke-strong);box-shadow:var(--sh-2)}
.topic-card .thumb{position:relative;overflow:hidden}
.topic-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease)}
.topic-card:hover .thumb img{transform:scale(1.045)}
.topic-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(12,19,31,.92));
}
.topic-card .thumb .badge-c{position:absolute;left:14px;top:14px;z-index:2}
.topic-card .body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.topic-card h3{font-size:18px;margin:0}
.topic-card p{font-size:14.5px;color:var(--t-2);margin:0;flex:1}
.topic-card .more{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.topic-card:hover .more{color:var(--t-1)}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:40px;
  padding:72px 0 32px;
  background:linear-gradient(180deg,rgba(12,19,31,.6),rgba(7,11,18,.98));
  border-top:1px solid var(--stroke);
}
.site-footer::before{
  content:"";
  position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand p{font-size:14.5px;color:var(--t-3);margin:18px 0 0;max-width:340px;line-height:1.85}
.footer-col h4{font-size:15px;color:var(--t-1);margin-bottom:16px;font-weight:600}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14.5px;color:var(--t-3)}
.footer-col a:hover{color:var(--c-primary)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--t-3);line-height:1.75}
.footer-contact li i{color:var(--c-primary);margin-top:5px;font-size:13px;flex:0 0 16px}
.footer-bottom{
  margin-top:52px;padding-top:24px;
  border-top:1px solid var(--stroke);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:13.5px;color:var(--t-3);
}
.footer-bottom a{color:var(--t-2)}
.footer-bottom a:hover{color:var(--c-primary)}

/* ---------- mobile fixed cta ---------- */
.mobile-cta{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1035;
  display:none;
  align-items:center;justify-content:space-between;
  gap:14px;
  height:60px;
  padding:0 16px calc(env(safe-area-inset-bottom,0px));
  background:rgba(12,19,31,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-top:1px solid var(--stroke-strong);
  transform:translateY(120%);
  opacity:0;
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.mobile-cta.show{transform:translateY(0);opacity:1}
.mobile-cta span{font-size:13.5px;color:var(--t-2);line-height:1.4}

/* ---------- responsive ---------- */
@media (max-width:1399.98px){
  .wrap{max-width:1200px}
}
@media (max-width:1199.98px){
  .content-layout{grid-template-columns:1fr;gap:40px}
  .side-nav{position:static;top:auto}
  .cta-band{padding:44px 34px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;
    top:0;left:0;right:0;bottom:0;
    z-index:1050;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:0;
    padding:92px 24px 40px;
    background:rgba(7,11,18,.98);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    transform:translateX(102%);
    transition:transform .32s var(--ease);
    overflow-y:auto;
  }
  .main-nav.open{transform:translateX(0)}
  .main-nav .nav-link{
    height:48px;
    padding:0 6px;
    border-radius:0;
    border-bottom:1px solid var(--stroke);
    font-size:16px;
    color:var(--t-1);
  }
  .main-nav .nav-link::after{display:none}
  .main-nav .nav-link.active{background:transparent;color:var(--c-primary)}
  .nav-drawer-foot{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .page-hero{padding:126px 0 56px}
  .block-row{grid-template-columns:1fr;gap:26px;padding:36px 0}
  .block-row.reverse .block-figure{order:0}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .stats-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mobile-cta{display:flex}
  body{padding-bottom:60px}
}
@media (max-width:767.98px){
  .wrap{padding:0 16px}
  .section{padding:56px 0}
  .page-hero{padding:116px 0 46px;min-height:auto}
  .hero-media img{aspect-ratio:16/9}
  .card-grid{grid-template-columns:1fr}
  .cta-band{padding:34px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn-c{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .btn-c{width:100%}
  .nav-actions .btn-sm-c{display:none}
  .side-nav{padding:20px 16px}
}
@media (max-width:520px){
  body{font-size:15.5px}
  h1{font-size:26px}
  h2{font-size:21px}
  .stat-item{padding:20px 16px}
  .stat-item .num{font-size:25px}
  .step-list li{padding-left:46px}
  .block-figure figcaption{font-size:12px;padding:12px 14px}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg-base:#070B12;
  --bg-elev-1:#0C131F;
  --bg-elev-2:#121B2A;
  --glass-bg:rgba(150,200,255,.06);
  --glass-bg-strong:rgba(150,200,255,.10);
  --stroke:rgba(160,200,255,.14);
  --stroke-strong:rgba(160,200,255,.28);
  --c-primary:#2FE0C8;
  --c-primary-deep:#17B8A4;
  --c-accent:#7B61FF;
  --c-cta:#FF8A3D;
  --t-1:#EAF2FF;
  --t-2:#A8B8CC;
  --t-3:#6B7C93;
  --r-card:18px;
  --r-btn:12px;
  --r-input:12px;
  --r-pill:999px;
  --sh-1:0 8px 30px rgba(0,0,0,.45);
  --sh-2:0 18px 50px rgba(0,0,0,.55);
  --sh-glow:0 0 0 1px rgba(47,224,200,.35),0 10px 30px rgba(47,224,200,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --wrap:1320px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t-1);
  background:
    radial-gradient(900px 520px at 10% -6%,rgba(47,224,200,.10),transparent 62%),
    radial-gradient(820px 480px at 94% 6%,rgba(123,97,255,.10),transparent 64%),
    var(--bg-base);
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
body.drawer-open{overflow:hidden;}
body.has-mobile-bar{padding-bottom:76px;}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:#6FF3DE;}
p{margin:0 0 1.15em;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.2px;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px;}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.section{padding:104px 0;position:relative;}
.section-sm{padding:76px 0;}
.section + .section{border-top:1px solid rgba(160,200,255,.08);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--c-primary);background:var(--glass-bg);
  border:1px solid var(--stroke);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:18px;
}
.sec-title{font-size:32px;margin-bottom:14px;}
.sec-desc{color:var(--t-2);max-width:760px;font-size:16.5px;}
.sec-head{margin-bottom:44px;}
.grid-line{height:1px;background:linear-gradient(90deg,transparent,rgba(160,200,255,.22),transparent);}

/* ============ 按钮 ============ */
.btn-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:15px;line-height:1;
  padding:15px 26px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
}
.btn-cta{background:var(--c-cta);color:#1A0C02;box-shadow:0 10px 26px rgba(255,138,61,.26);}
.btn-cta:hover{background:#FFA05F;color:#1A0C02;transform:translateY(-1px);box-shadow:0 14px 34px rgba(255,138,61,.36);}
.btn-cta:active{transform:scale(.98);}
.btn-primary-c{background:var(--c-primary);color:#04201C;box-shadow:0 10px 26px rgba(47,224,200,.22);}
.btn-primary-c:hover{background:#63EEDA;color:#04201C;transform:translateY(-1px);box-shadow:0 14px 34px rgba(47,224,200,.34);}
.btn-primary-c:active{transform:scale(.98);}
.btn-glass-c{
  background:var(--glass-bg);color:var(--t-1);
  border:1px solid var(--stroke-strong);
}
.btn-glass-c:hover{background:var(--glass-bg-strong);border-color:var(--c-primary);color:var(--t-1);transform:translateY(-1px);}
.btn-ghost-c{background:transparent;color:var(--c-primary);padding:8px 0;border:0;border-radius:0;}
.btn-ghost-c:hover{color:#6FF3DE;box-shadow:inset 0 -1px 0 0 rgba(111,243,222,.7);}
.btn-sm-c{padding:11px 18px;font-size:14px;border-radius:10px;}
.btn-c[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 徽章 / 标签 ============ */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.4px;
  padding:5px 12px;border-radius:var(--r-pill);
  border:1px solid var(--stroke);background:var(--glass-bg);color:var(--t-2);
}
.badge-accent{color:#BCAEFF;border-color:rgba(123,97,255,.45);background:rgba(123,97,255,.12);}
.badge-ok{color:#7FF0DC;border-color:rgba(47,224,200,.4);background:rgba(47,224,200,.10);}
.anchor-pill{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:600;color:var(--t-2);
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--stroke);background:var(--glass-bg);
  transition:all .25s var(--ease);
}
.anchor-pill:hover{color:var(--t-1);border-color:var(--c-primary);background:rgba(47,224,200,.10);transform:translateY(-1px);}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  padding:16px 0;
  transition:background .3s var(--ease),box-shadow .3s var(--ease),padding .3s var(--ease),border-color .3s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{
  padding:10px 0;
  background:rgba(9,14,23,.86);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--stroke);
  box-shadow:0 12px 34px rgba(0,0,0,.5);
}
.nav-inner{display:flex;align-items:center;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--t-1);flex-shrink:0;}
.brand:hover{color:var(--t-1);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(47,224,200,.22),rgba(123,97,255,.24));
  border:1px solid var(--stroke-strong);color:var(--c-primary);font-size:16px;
  box-shadow:inset 0 0 18px rgba(47,224,200,.16);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.3px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;color:var(--t-2);font-size:15px;font-weight:500;
  padding:9px 14px;border-radius:10px;
  transition:color .25s var(--ease),background .25s var(--ease);
}
.nav-link:hover{color:var(--t-1);background:var(--glass-bg);}
.nav-link.active{color:var(--c-primary);background:rgba(47,224,200,.10);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--c-primary);box-shadow:0 0 10px rgba(47,224,200,.8);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--glass-bg);border:1px solid var(--stroke);color:var(--t-1);font-size:17px;
  transition:all .25s var(--ease);
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:1050;
  background:rgba(6,10,17,.98);
  padding:22px 20px calc(24px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;gap:18px;
  transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
  overflow-y:auto;
}
.mobile-drawer.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;background:var(--glass-bg);
  border:1px solid var(--stroke);color:var(--t-1);font-size:18px;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:8px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 16px;border-radius:12px;
  color:var(--t-2);font-size:16px;font-weight:600;
  border:1px solid transparent;background:var(--glass-bg);
}
.drawer-nav a.active{color:var(--c-primary);border-color:rgba(47,224,200,.35);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;border-top:1px solid var(--stroke);padding-top:18px;}
.drawer-foot .tip{color:var(--t-3);font-size:13px;line-height:1.7;}

/* ============ 分类页 Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;
  padding:158px 0 84px;min-height:420px;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(7,11,18,.96) 0%,rgba(7,11,18,.80) 46%,rgba(7,11,18,.60) 100%),
    linear-gradient(180deg,rgba(7,11,18,.45) 0%,rgba(7,11,18,.96) 100%);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(160,200,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(160,200,255,.055) 1px,transparent 1px);
  background-size:62px 62px;
  mask-image:radial-gradient(circle at 30% 40%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 30% 40%,#000 20%,transparent 78%);
}
.cat-hero .wrap{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t-3);margin-bottom:20px;}
.crumb a{color:var(--t-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:rgba(160,200,255,.3);}
.crumb .current{color:var(--t-1);font-weight:600;}
.hero-h1{font-size:46px;line-height:1.22;margin-bottom:18px;letter-spacing:.4px;}
.hero-h1 .hl{
  background:linear-gradient(96deg,var(--c-primary),#7FF0DC 55%,var(--c-accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:var(--t-2);font-size:17px;max-width:620px;margin-bottom:26px;}
.hero-anchors{display:flex;flex-wrap:wrap;gap:10px;}
.hero-visual{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--stroke-strong);box-shadow:var(--sh-2);
}
.hero-visual img{aspect-ratio:2/1;object-fit:cover;width:100%;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,.10),rgba(7,11,18,.72));
}
.hero-visual .visual-tag{
  position:absolute;left:18px;bottom:16px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--t-1);
}
.hero-visual .visual-tag i{color:var(--c-primary);}

/* ============ 要点卡片矩阵 ============ */
.point-card{
  height:100%;
  background:var(--bg-elev-1);
  border:1px solid var(--stroke);
  border-radius:var(--r-card);
  padding:26px 24px 24px;
  position:relative;overflow:hidden;
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.point-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.55),transparent);
  opacity:.7;
}
.point-card:hover{transform:translateY(-4px);border-color:var(--stroke-strong);box-shadow:var(--sh-1);}
.point-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.point-icon{
  width:44px;height:44px;border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(123,97,255,.12);border:1px solid rgba(123,97,255,.4);
  color:#BCAEFF;font-size:17px;
}
.point-no{font-size:13px;font-weight:700;letter-spacing:1px;color:var(--t-3);}
.point-card h3{font-size:19px;margin-bottom:10px;}
.point-card p{color:var(--t-2);font-size:15px;margin-bottom:16px;}
.check-list li{
  position:relative;padding-left:22px;font-size:14.5px;color:var(--t-2);
  line-height:1.75;margin-bottom:8px;
}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:1px;color:var(--c-primary);font-size:11px;
}

/* ============ 横向提示条 ============ */
.alert-bar{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  background:linear-gradient(100deg,rgba(255,138,61,.14),rgba(255,138,61,.04));
  border:1px solid rgba(255,138,61,.35);
  border-radius:var(--r-card);
  padding:20px 24px;
}
.alert-bar .ic{
  width:44px;height:44px;flex-shrink:0;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,138,61,.18);color:var(--c-cta);font-size:18px;
}
.alert-bar p{margin:0;color:#FFD9BE;font-size:15.5px;line-height:1.75;flex:1;min-width:240px;}
.alert-bar strong{color:#FFE7D6;}

/* ============ 数据卡 ============ */
.stat-strip{
  background:var(--glass-bg);
  border:1px solid var(--stroke);
  border-radius:var(--r-card);
  padding:8px;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.stat-item{
  padding:26px 22px;border-radius:14px;height:100%;
  border-right:1px solid rgba(160,200,255,.10);
  transition:background .25s var(--ease);
}
.stat-item:hover{background:rgba(47,224,200,.05);}
.stat-item:last-child{border-right:0;}
.stat-num{font-size:34px;font-weight:700;color:var(--c-primary);line-height:1.1;letter-spacing:.5px;}
.stat-num small{font-size:15px;color:var(--t-2);font-weight:600;margin-left:4px;}
.stat-label{font-size:14px;color:var(--t-2);margin-top:8px;line-height:1.7;}

/* ============ 场景对照 ============ */
.scene-list{border:1px solid var(--stroke);border-radius:var(--r-card);overflow:hidden;background:var(--bg-elev-1);}
.scene-row{
  display:grid;grid-template-columns:1.1fr 1.3fr;gap:20px;
  padding:20px 24px;align-items:start;
  border-bottom:1px solid rgba(160,200,255,.10);
  transition:background .25s var(--ease);
}
.scene-row:last-child{border-bottom:0;}
.scene-row:hover{background:rgba(150,200,255,.05);}
.scene-row .sc-q{display:flex;gap:12px;align-items:flex-start;color:var(--t-1);font-weight:600;font-size:15.5px;}
.scene-row .sc-q i{color:var(--c-cta);margin-top:5px;font-size:14px;}
.scene-row .sc-a{color:var(--t-2);font-size:15px;display:flex;gap:12px;align-items:flex-start;}
.scene-row .sc-a i{color:var(--c-primary);margin-top:5px;font-size:14px;}

.self-check{
  background:var(--bg-elev-2);
  border:1px solid var(--stroke);
  border-radius:var(--r-card);
  padding:28px 26px;height:100%;
}
.self-check h3{font-size:20px;margin-bottom:8px;}
.self-check .sub{color:var(--t-3);font-size:14px;margin-bottom:20px;}
.step-list li{
  display:flex;gap:14px;padding:14px 0;
  border-bottom:1px dashed rgba(160,200,255,.14);
}
.step-list li:last-child{border-bottom:0;padding-bottom:0;}
.step-no{
  width:28px;height:28px;flex-shrink:0;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:var(--c-primary);
  background:rgba(47,224,200,.10);border:1px solid rgba(47,224,200,.35);
}
.step-list .st-text strong{display:block;font-size:15px;color:var(--t-1);margin-bottom:3px;}
.step-list .st-text span{font-size:14px;color:var(--t-2);line-height:1.7;}

/* ============ FAQ ============ */
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--stroke);}
.faq-acc .accordion-button{
  background:transparent;color:var(--t-1);font-weight:600;font-size:16.5px;
  padding:22px 44px 22px 34px;box-shadow:none;
}
.faq-acc .accordion-button::before{
  content:"\f059";font-family:"Font Awesome 6 Free";font-weight:400;
  position:absolute;left:0;color:var(--c-primary);font-size:15px;
}
.faq-acc .accordion-button::after{
  background-image:none;
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:6px;width:auto;height:auto;
  color:var(--t-3);font-size:14px;
  transition:transform .25s var(--ease),color .25s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--c-primary);}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent;outline:none;}
.faq-acc .accordion-button:focus-visible{outline:2px solid var(--c-primary);outline-offset:-2px;}
.faq-acc .accordion-body{color:var(--t-2);font-size:15.5px;padding:0 44px 24px 34px;line-height:1.85;}

/* ============ 相关分类卡 ============ */
.rel-card{
  display:block;height:100%;
  background:var(--bg-elev-1);border:1px solid var(--stroke);
  border-radius:var(--r-card);overflow:hidden;color:var(--t-1);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--stroke-strong);box-shadow:var(--sh-1);color:var(--t-1);}
.rel-card .thumb{position:relative;overflow:hidden;}
.rel-card .thumb img{aspect-ratio:16/9;object-fit:cover;width:100%;transition:transform .4s var(--ease);}
.rel-card:hover .thumb img{transform:scale(1.04);}
.rel-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(12,19,31,.85));}
.rel-card .rel-body{padding:20px 22px 22px;}
.rel-card h3{font-size:18px;margin:10px 0 8px;}
.rel-card p{color:var(--t-2);font-size:14.5px;margin:0;}
.rel-more{display:inline-flex;align-items:center;gap:7px;margin-top:14px;font-size:14px;font-weight:600;color:var(--c-primary);}

/* ============ CTA ============ */
.cta-block{
  position:relative;overflow:hidden;
  border:1px solid var(--stroke-strong);
  border-radius:24px;
  background:var(--bg-elev-1);
  padding:56px 48px;
}
.cta-block::before{
  content:"";position:absolute;inset:0;opacity:.6;
  background:radial-gradient(620px 320px at 12% 20%,rgba(47,224,200,.18),transparent 66%),
             radial-gradient(520px 300px at 88% 90%,rgba(123,97,255,.16),transparent 68%);
}
.cta-block::after{
  content:"";position:absolute;inset:0;opacity:.4;
  background-image:linear-gradient(rgba(160,200,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(160,200,255,.06) 1px,transparent 1px);
  background-size:54px 54px;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:30px;margin-bottom:10px;}
.cta-inner p{color:var(--t-2);margin:0;max-width:600px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 表单 ============ */
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:14px;color:var(--t-2);margin-bottom:8px;font-weight:500;}
.input-c{
  width:100%;padding:14px 16px;border-radius:var(--r-input);
  background:rgba(7,11,18,.7);border:1px solid var(--stroke);
  color:var(--t-1);font-size:15px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.input-c::placeholder{color:var(--t-3);}
.input-c:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(47,224,200,.18);background:rgba(7,11,18,.9);}
.input-c.is-error{border-color:#FF6B5E;box-shadow:0 0 0 3px rgba(255,107,94,.16);}
.form-hint{font-size:13px;color:var(--t-3);margin-top:7px;}
.form-hint.error{color:#FF9A90;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:20px;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(160,200,255,.24),transparent) 1;
  background:linear-gradient(180deg,rgba(12,19,31,.6),rgba(7,11,18,1));
  padding:68px 0 30px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand p{color:var(--t-3);font-size:14.5px;margin:18px 0 0;max-width:340px;line-height:1.8;}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--t-1);}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{color:var(--t-2);font-size:14.5px;}
.footer-col ul li a:hover{color:var(--c-primary);}
.footer-contact li{display:flex;gap:10px;color:var(--t-3);font-size:14px;line-height:1.75;margin-bottom:12px;}
.footer-contact li i{color:var(--c-primary);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:46px;padding-top:22px;
  border-top:1px solid rgba(160,200,255,.10);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--t-3);font-size:13.5px;
}
.footer-bottom a{color:var(--t-2);}
.footer-bottom a:hover{color:var(--c-primary);}

/* ============ 底部固定转化条 ============ */
.mobile-cta-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1035;
  display:none;align-items:center;justify-content:space-between;gap:12px;
  height:60px;padding:0 16px calc(0px + env(safe-area-inset-bottom));
  background:rgba(10,16,26,.92);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--stroke-strong);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.mobile-cta-bar.show{opacity:1;transform:translateY(0);pointer-events:auto;}
.mobile-cta-bar span{font-size:13.5px;color:var(--t-2);line-height:1.4;}

/* ============ 响应式 ============ */
@media (min-width:1400px){ .wrap{max-width:1400px;} }
@media (max-width:1199.98px){
  .hero-h1{font-size:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:991.98px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-actions .btn-c.btn-cta{display:none;}
  .site-header{padding:12px 0;}
  .brand-text{font-size:15.5px;}
  .cat-hero{padding:126px 0 62px;min-height:0;}
  .hero-h1{font-size:32px;}
  .hero-lead{font-size:16px;}
  .section{padding:68px 0;}
  .section-sm{padding:54px 0;}
  .sec-title{font-size:24px;}
  .cta-block{padding:38px 26px;border-radius:20px;}
  .cta-inner h2{font-size:24px;}
  .scene-row{grid-template-columns:1fr;gap:10px;padding:18px;}
  .stat-item{border-right:0;border-bottom:1px solid rgba(160,200,255,.10);}
  .stat-item:last-child{border-bottom:0;}
  .mobile-cta-bar{display:flex;}
  body.has-mobile-bar{padding-bottom:78px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  .wrap{padding:0 16px;}
  .hero-h1{font-size:28px;}
  .hero-anchors{gap:8px;}
  .anchor-pill{font-size:13px;padding:7px 13px;}
  .point-card{padding:22px 18px;}
  .stat-num{font-size:28px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-c{width:100%;}
  .faq-acc .accordion-button{font-size:15.5px;padding:18px 38px 18px 30px;}
  .faq-acc .accordion-body{padding:0 30px 20px 30px;}
}
@media (max-width:575.98px){
  body{font-size:15.5px;}
  .sec-title{font-size:22px;}
  .alert-bar{padding:16px;}
  .alert-bar p{font-size:14.5px;}
  .self-check{padding:22px 18px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
:root{
  --bg-base:#070B12;--bg-elev-1:#0C131F;--bg-elev-2:#121B2A;
  --glass-bg:rgba(150,200,255,.06);--glass-bg-strong:rgba(150,200,255,.10);
  --stroke:rgba(160,200,255,.14);--stroke-strong:rgba(160,200,255,.28);
  --c-primary:#2FE0C8;--c-primary-deep:#17B8A4;--c-accent:#7B61FF;--c-cta:#FF8A3D;
  --t-1:#EAF2FF;--t-2:#A8B8CC;--t-3:#6B7C93;
  --r-card:18px;--r-btn:12px;--r-input:12px;--r-pill:999px;
  --sh-1:0 8px 30px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(47,224,200,.35),0 10px 30px rgba(47,224,200,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:76px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-base);color:var(--t-1);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--c-primary)}
h1,h2,h3,h4{margin:0;font-weight:650;line-height:1.3;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:1320px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.wrap{max-width:1400px}}
@media (max-width:767.98px){.wrap{padding:0 16px}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  transition:background .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(7,11,18,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--stroke);box-shadow:var(--sh-1);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:var(--nav-h)}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(47,224,200,.22),rgba(123,97,255,.28));
  border:1px solid var(--stroke-strong);color:var(--c-primary);font-size:15px;
  box-shadow:0 0 18px rgba(47,224,200,.18);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.4px;color:var(--t-1)}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--t-2);transition:color .25s var(--ease),background .25s var(--ease);
}
.nav-link:hover{color:var(--t-1);background:var(--glass-bg)}
.nav-link.active{color:var(--c-primary);background:rgba(47,224,200,.09);box-shadow:inset 0 0 0 1px rgba(47,224,200,.22)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;background:var(--glass-bg);
  border:1px solid var(--stroke);color:var(--t-1);font-size:17px;cursor:pointer;
  transition:all .25s var(--ease);
}
.nav-toggle:hover{border-color:var(--stroke-strong);color:var(--c-primary)}
@media (max-width:991.98px){
  .main-nav{display:none}
  .nav-toggle{display:grid;place-items:center}
  .nav-actions .btn-c{display:none}
}

/* ---------- buttons ---------- */
.btn-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;
  font-weight:600;font-size:15px;padding:12px 22px;line-height:1;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
}
.btn-c:active{transform:scale(.98)}
.btn-cta{background:linear-gradient(135deg,var(--c-cta),#FFA45E);color:#1A1005}
.btn-cta:hover{color:#1A1005;transform:translateY(-1px);box-shadow:0 10px 28px rgba(255,138,61,.34)}
.btn-primary-c{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));color:#04211D}
.btn-primary-c:hover{color:#04211D;transform:translateY(-1px);box-shadow:var(--sh-glow)}
.btn-glass{background:var(--glass-bg);border-color:var(--stroke);color:var(--t-1);backdrop-filter:blur(8px)}
.btn-glass:hover{color:var(--t-1);background:var(--glass-bg-strong);border-color:var(--stroke-strong);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--c-primary);padding:12px 6px}
.btn-ghost:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:5px}
.btn-sm-c{padding:9px 16px;font-size:14px;border-radius:10px}
.btn-xs-c{padding:6px 12px;font-size:13px;border-radius:9px}
.btn-lg-c{padding:15px 30px;font-size:16px;border-radius:14px}

/* ---------- mobile drawer ---------- */
.nav-drawer{
  position:fixed;inset:0;z-index:1040;background:rgba(7,11,18,.98);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  display:flex;flex-direction:column;padding:22px 20px 32px;
  transform:translateY(-102%);opacity:0;visibility:hidden;
  transition:transform .38s var(--ease),opacity .3s var(--ease),visibility .3s;
}
.nav-drawer.open{transform:translateY(0);opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{
  width:42px;height:42px;border-radius:12px;background:var(--glass-bg);
  border:1px solid var(--stroke);color:var(--t-1);font-size:17px;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  height:48px;display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;border-radius:14px;font-size:16px;color:var(--t-2);
  border:1px solid transparent;transition:all .25s var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--c-primary);background:var(--glass-bg);border-color:var(--stroke)}
.drawer-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--stroke);display:flex;flex-direction:column;gap:14px}
.drawer-note{font-size:13px;color:var(--t-3);line-height:1.7}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;padding:calc(var(--nav-h) + 56px) 0 64px;
  min-height:380px;border-bottom:1px solid var(--stroke);
}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  opacity:.30;transform:scale(1.03);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(7,11,18,.96) 0%,rgba(7,11,18,.78) 46%,rgba(7,11,18,.42) 100%),
    linear-gradient(180deg,rgba(7,11,18,.72) 0%,rgba(7,11,18,.96) 100%);
}
.hero-glow{
  position:absolute;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.16),transparent 65%);
  top:-260px;right:-140px;pointer-events:none;
}
.hero-glow.b{background:radial-gradient(circle,rgba(123,97,255,.14),transparent 65%);bottom:-340px;left:-180px;top:auto;right:auto}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.6px;
  color:var(--c-primary);padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(47,224,200,.09);border:1px solid rgba(47,224,200,.24);
}
.hero-copy h1{font-size:44px;font-weight:700;margin:20px 0 16px;letter-spacing:.4px}
.hero-copy .lede{font-size:17px;color:var(--t-2);max-width:640px}
.anchor-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.anchor-pills a{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--t-2);background:var(--glass-bg);border:1px solid var(--stroke);
  transition:all .25s var(--ease);
}
.anchor-pills a:hover{color:var(--c-primary);border-color:var(--stroke-strong);background:var(--glass-bg-strong);transform:translateY(-1px)}
.hero-visual{position:relative}
.hero-visual .frame{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--stroke-strong);
  box-shadow:var(--sh-1),inset 0 0 0 1px rgba(255,255,255,.03);
  background:var(--bg-elev-1);
}
.hero-visual .frame img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--bg-elev-2)}
.hero-visual .frame::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(7,11,18,0) 45%,rgba(7,11,18,.72) 100%);
  pointer-events:none;
}
.hero-visual .frame-cap{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:3;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.hero-visual .frame-cap span{font-size:13px;color:var(--t-2)}
.hero-visual .frame-cap b{font-size:14px;color:var(--c-primary);font-weight:600}
@media (max-width:1199.98px){
  .hero-copy h1{font-size:38px}
}
@media (max-width:991.98px){
  .page-hero{padding:calc(var(--nav-h) + 34px) 0 48px;min-height:0}
  .hero-inner{grid-template-columns:1fr;gap:30px}
  .hero-copy h1{font-size:31px;margin:16px 0 12px}
  .hero-copy .lede{font-size:16px}
  .hero-bg{opacity:.38}
}
@media (max-width:575.98px){
  .hero-copy h1{font-size:27px}
  .anchor-pills a{font-size:13px;padding:8px 13px}
}

/* ---------- sections ---------- */
.section{padding:96px 0;position:relative}
.section.alt{background:var(--bg-elev-1);border-top:1px solid var(--stroke);border-bottom:1px solid var(--stroke)}
.section-head{max-width:760px;margin-bottom:50px}
.section-head .kicker{
  font-size:13px;letter-spacing:1.4px;color:var(--c-accent);font-weight:600;
  text-transform:uppercase;display:inline-block;margin-bottom:12px;
}
.section-head h2{font-size:32px;margin-bottom:14px}
.section-head p{color:var(--t-2)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .section-head h2{font-size:23px}
  .section-head{margin-bottom:34px}
}

/* ---------- stage axis ---------- */
.stage-axis{position:relative;padding-left:0}
.stage-axis::before{
  content:"";position:absolute;left:29px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,rgba(47,224,200,.55),rgba(123,97,255,.35),rgba(47,224,200,.05));
  border-radius:2px;
}
.stage-item{position:relative;display:grid;grid-template-columns:60px 1fr;gap:24px;padding-bottom:34px}
.stage-item:last-child{padding-bottom:0}
.stage-node{
  position:relative;z-index:2;width:58px;height:58px;border-radius:18px;
  display:grid;place-items:center;font-size:15px;font-weight:700;letter-spacing:.5px;
  color:var(--c-primary);background:var(--bg-elev-2);border:1px solid var(--stroke-strong);
  box-shadow:0 0 0 6px rgba(7,11,18,.92),0 0 22px rgba(47,224,200,.24);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.stage-item:hover .stage-node{transform:translateY(-2px);border-color:rgba(47,224,200,.55);box-shadow:0 0 0 6px rgba(7,11,18,.92),0 0 32px rgba(47,224,200,.36)}
.stage-body{
  background:var(--bg-elev-1);border:1px solid var(--stroke);border-radius:var(--r-card);
  padding:24px 26px;transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.stage-item:hover .stage-body{transform:translateY(-3px);border-color:var(--stroke-strong);box-shadow:var(--sh-1)}
.stage-body h3{font-size:20px;margin-bottom:10px}
.stage-body p{color:var(--t-2);font-size:15.5px}
.stage-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:5px 12px;border-radius:var(--r-pill);
  border:1px solid var(--stroke);background:var(--glass-bg);color:var(--t-2);
}
.tag.accent{color:#C9BFFF;border-color:rgba(123,97,255,.4);background:rgba(123,97,255,.12)}
.tag.ok{color:var(--c-primary);border-color:rgba(47,224,200,.35);background:rgba(47,224,200,.10)}
@media (max-width:767.98px){
  .stage-axis::before{left:20px}
  .stage-item{grid-template-columns:44px 1fr;gap:16px}
  .stage-node{width:42px;height:42px;border-radius:14px;font-size:13px;box-shadow:0 0 0 5px rgba(7,11,18,.92),0 0 18px rgba(47,224,200,.22)}
  .stage-body{padding:18px 18px}
  .stage-body h3{font-size:17px}
  .stage-body p{font-size:15px}
}

/* ---------- highlight bar ---------- */
.hl-bar{
  display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center;
  padding:26px 30px;border-radius:var(--r-card);
  background:linear-gradient(120deg,rgba(47,224,200,.10),rgba(123,97,255,.10));
  border:1px solid var(--stroke-strong);backdrop-filter:blur(10px);
  margin-bottom:56px;
}
.hl-bar .icon{
  width:56px;height:56px;border-radius:16px;display:grid;place-items:center;
  background:var(--bg-base);border:1px solid var(--stroke-strong);color:var(--c-primary);font-size:20px;
}
.hl-bar h3{font-size:19px;margin-bottom:6px}
.hl-bar p{color:var(--t-2);font-size:15px}
@media (max-width:767.98px){
  .hl-bar{grid-template-columns:1fr;gap:14px;padding:20px}
  .hl-bar .icon{width:46px;height:46px;font-size:17px}
}

/* ---------- spec table ---------- */
.table-card{
  border:1px solid var(--stroke);border-radius:var(--r-card);overflow:hidden;background:var(--bg-elev-1);
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.spec{width:100%;min-width:720px;border-collapse:collapse}
table.spec thead th{
  text-align:left;font-size:13px;letter-spacing:.8px;color:var(--t-3);font-weight:600;
  padding:16px 20px;background:var(--bg-elev-2);border-bottom:1px solid var(--stroke);white-space:nowrap;
}
table.spec tbody td{
  padding:17px 20px;font-size:15px;color:var(--t-2);border-bottom:1px solid rgba(160,200,255,.08);vertical-align:top;
}
table.spec tbody tr:nth-child(even){background:rgba(150,200,255,.03)}
table.spec tbody tr:last-child td{border-bottom:none}
table.spec tbody tr:hover{background:rgba(47,224,200,.06)}
table.spec td:first-child{color:var(--t-1);font-weight:600;white-space:nowrap}
table.spec .val{color:var(--c-primary);font-weight:600;font-variant-numeric:tabular-nums}
.table-note{font-size:13px;color:var(--t-3);padding:14px 20px;border-top:1px solid var(--stroke);background:var(--bg-elev-2)}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:340px 1fr;gap:44px;align-items:start}
.faq-aside{
  position:sticky;top:calc(var(--nav-h) + 24px);
  border:1px solid var(--stroke);border-radius:var(--r-card);padding:26px;
  background:var(--glass-bg);backdrop-filter:blur(12px);
}
.faq-aside h3{font-size:18px;margin-bottom:12px}
.faq-aside p{font-size:14.5px;color:var(--t-2);margin-bottom:18px}
.faq-aside ul li{margin-bottom:10px}
.faq-aside ul a{display:flex;align-items:center;gap:8px;font-size:14.5px;color:var(--t-2)}
.faq-aside ul a i{color:var(--c-primary);font-size:12px}
.faq-aside ul a:hover{color:var(--c-primary)}
.faq-acc .accordion-item{
  background:transparent;border:none;border-bottom:1px solid var(--stroke);
}
.faq-acc .accordion-item:first-of-type{border-top:1px solid var(--stroke)}
.faq-acc .accordion-button{
  background:transparent;color:var(--t-1);font-size:17px;font-weight:600;
  padding:22px 46px 22px 34px;box-shadow:none;gap:12px;line-height:1.5;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;box-shadow:none}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--c-primary);outline-offset:-3px}
.faq-acc .accordion-button::before{
  content:"?";position:absolute;left:0;top:22px;width:22px;height:22px;border-radius:50%;
  display:grid;place-items:center;font-size:12px;font-weight:700;
  color:var(--c-accent);border:1px solid rgba(123,97,255,.45);background:rgba(123,97,255,.10);
}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;width:28px;height:28px;display:grid;place-items:center;
  font-size:20px;line-height:1;color:var(--c-primary);position:absolute;right:6px;
  transition:transform .25s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.faq-acc .accordion-body{padding:0 34px 26px;color:var(--t-2);font-size:15.5px}
.faq-more{margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14.5px;color:var(--t-3)}
@media (max-width:1199.98px){
  .faq-wrap{grid-template-columns:1fr;gap:30px}
  .faq-aside{position:static}
}
@media (max-width:575.98px){
  .faq-acc .accordion-button{font-size:15.5px;padding:18px 42px 18px 30px}
  .faq-acc .accordion-body{padding:0 18px 22px 30px;font-size:15px}
}

/* ---------- related categories ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;background:var(--bg-elev-1);
  border:1px solid var(--stroke);border-radius:var(--r-card);overflow:hidden;
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--stroke-strong);box-shadow:var(--sh-1);color:inherit}
.rel-card .thumb{position:relative;overflow:hidden}
.rel-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-elev-2);transition:transform .4s var(--ease)}
.rel-card:hover .thumb img{transform:scale(1.04)}
.rel-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,18,0) 40%,rgba(7,11,18,.75) 100%)}
.rel-card .body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card .body h3{font-size:18px}
.rel-card .body p{font-size:14.5px;color:var(--t-2);flex:1}
.rel-card .body .go{font-size:14px;color:var(--c-primary);display:inline-flex;align-items:center;gap:8px}
@media (max-width:991.98px){.rel-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.rel-grid{grid-template-columns:1fr}}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;padding:52px 48px;
  background:var(--bg-elev-1);border:1px solid var(--stroke-strong);
  display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(160,200,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(160,200,255,.06) 1px,transparent 1px);
  background-size:34px 34px;opacity:.6;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;right:-180px;top:-220px;
  background:radial-gradient(circle,rgba(47,224,200,.20),transparent 65%);pointer-events:none;
}
.cta-band .cta-copy{position:relative;z-index:2}
.cta-band h2{font-size:30px;margin-bottom:12px}
.cta-band p{color:var(--t-2);max-width:620px}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px}
@media (max-width:991.98px){
  .cta-band{grid-template-columns:1fr;padding:34px 24px;gap:24px}
  .cta-band h2{font-size:23px}
}

/* ---------- footer ---------- */
.site-footer{
  margin-top:0;padding:72px 0 26px;background:var(--bg-elev-1);
  border-top:1px solid var(--stroke);position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.55),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14.5px;color:var(--t-2);max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--t-1)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14.5px;color:var(--t-3)}
.footer-col ul a:hover{color:var(--c-primary)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--t-3);line-height:1.7;margin-bottom:12px}
.footer-contact li i{color:var(--c-primary);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--stroke);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:var(--t-3);
}
.footer-bottom a{color:var(--t-2)}
.footer-bottom a:hover{color:var(--c-primary)}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:575.98px){
  .site-footer{padding:52px 0 22px}
  .footer-grid{grid-template-columns:1fr}
}

/* ---------- mobile convert bar ---------- */
.mobile-convert{
  position:fixed;left:0;right:0;bottom:0;z-index:1029;display:none;
  align-items:center;justify-content:space-between;gap:14px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  min-height:60px;background:rgba(12,19,31,.92);backdrop-filter:blur(14px);
  border-top:1px solid var(--stroke);
  opacity:0;transform:translateY(100%);transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.mobile-convert.show{opacity:1;transform:translateY(0)}
.mobile-convert span{font-size:13.5px;color:var(--t-2);line-height:1.5}
@media (max-width:991.98px){
  .mobile-convert{display:flex}
  body{padding-bottom:76px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category4 */
:root{
  --bg-base:#070B12;
  --bg-elev-1:#0C131F;
  --bg-elev-2:#121B2A;
  --glass-bg:rgba(150,200,255,.06);
  --glass-bg-strong:rgba(150,200,255,.10);
  --stroke:rgba(160,200,255,.14);
  --stroke-strong:rgba(160,200,255,.28);
  --c-primary:#2FE0C8;
  --c-primary-deep:#17B8A4;
  --c-accent:#7B61FF;
  --c-cta:#FF8A3D;
  --t-1:#EAF2FF;
  --t-2:#A8B8CC;
  --t-3:#6B7C93;
  --r-card:18px;
  --r-btn:12px;
  --r-input:12px;
  --r-pill:999px;
  --sh-1:0 8px 30px rgba(0,0,0,.45);
  --sh-2:0 18px 50px rgba(0,0,0,.55);
  --sh-glow:0 0 0 1px rgba(47,224,200,.35),0 10px 30px rgba(47,224,200,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:76px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:var(--nav-h);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--t-1);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(47,224,200,.10),transparent 60%),
    radial-gradient(760px 480px at 92% 6%,rgba(123,97,255,.10),transparent 62%),
    linear-gradient(rgba(160,200,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(160,200,255,.035) 1px,transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:#6FF3DF;}
h1,h2,h3,h4{margin:0;color:var(--t-1);font-weight:700;line-height:1.3;}
p{margin:0 0 1.15em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.wrap{max-width:1320px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px;}
.section-head h2{font-size:32px;letter-spacing:.2px;}
.section-head p{color:var(--t-2);margin:8px 0 0;max-width:660px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-primary);letter-spacing:2px;text-transform:uppercase;margin-bottom:14px;}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--c-primary),transparent);}
.divider{height:1px;border:0;margin:0;background:linear-gradient(90deg,transparent,rgba(160,200,255,.20),transparent);}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,12,20,.86);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--stroke);
  box-shadow:var(--sh-1);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--nav-h);}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--t-1);font-weight:700;font-size:17px;letter-spacing:.4px;}
.brand:hover{color:var(--t-1);}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(47,224,200,.22),rgba(123,97,255,.28));
  border:1px solid var(--stroke-strong);color:var(--c-primary);font-size:16px;
  box-shadow:0 0 18px rgba(47,224,200,.20);
}
.brand-text{white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--t-2);white-space:nowrap;
  transition:color .25s var(--ease),background .25s var(--ease);
}
.nav-link:hover{color:var(--t-1);background:var(--glass-bg);}
.nav-link.active{color:var(--c-primary);background:rgba(47,224,200,.10);}
.nav-link.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:2px;
  width:20px;height:2px;border-radius:2px;background:var(--c-primary);
  box-shadow:0 0 10px rgba(47,224,200,.8);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--glass-bg);border:1px solid var(--stroke);color:var(--t-1);font-size:17px;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.nav-toggle:hover{background:var(--glass-bg-strong);border-color:var(--stroke-strong);}

/* ============ 按钮 ============ */
.btn-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.3px;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn-c:active{transform:scale(.98);}
.btn-cta{background:var(--c-cta);color:#181008;box-shadow:0 8px 24px rgba(255,138,61,.24);}
.btn-cta:hover{background:#FFA463;color:#181008;transform:translateY(-1px);box-shadow:0 12px 32px rgba(255,138,61,.36);}
.btn-primary-c{background:var(--c-primary);color:#04231F;box-shadow:0 8px 24px rgba(47,224,200,.20);}
.btn-primary-c:hover{background:#5CEAD6;color:#04231F;transform:translateY(-1px);box-shadow:var(--sh-glow);}
.btn-ghost-c{background:var(--glass-bg);border-color:var(--stroke);color:var(--t-1);}
.btn-ghost-c:hover{background:var(--glass-bg-strong);border-color:var(--stroke-strong);color:var(--t-1);transform:translateY(-1px);}
.btn-line-c{background:transparent;color:var(--c-primary);padding:8px 0;border:0;}
.btn-line-c:hover{color:#7FF5E3;transform:translateY(-1px);}
.btn-sm-c{padding:9px 16px;font-size:14px;border-radius:10px;}
.btn-c[disabled],.btn-c.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 徽章 / 标签 ============ */
.badge-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;letter-spacing:.6px;
  background:rgba(123,97,255,.14);border:1px solid rgba(123,97,255,.42);color:#C3B6FF;
}
.badge-pill.is-teal{background:rgba(47,224,200,.12);border-color:rgba(47,224,200,.42);color:#8CF3E2;}
.tag{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:var(--r-pill);
  font-size:13px;color:var(--t-2);background:var(--glass-bg);border:1px solid var(--stroke);
}
.tag.is-teal{color:#8CF3E2;border-color:rgba(47,224,200,.35);}

/* ============ 面包屑 ============ */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13.5px;color:var(--t-3);margin-bottom:18px;}
.crumbs a{color:var(--t-3);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .current{color:var(--t-1);font-weight:600;}
.crumbs i{font-size:10px;color:var(--t-3);}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;padding:52px 0 54px;
  background-image:
    linear-gradient(90deg,rgba(7,11,18,.95) 0%,rgba(7,11,18,.80) 46%,rgba(7,11,18,.55) 100%),
    linear-gradient(180deg,rgba(7,11,18,.45) 0%,rgba(7,11,18,.94) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover,cover,cover;
  background-position:center,center,center;
  border-bottom:1px solid var(--stroke);
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;min-height:340px;}
.hero-copy h1{font-size:40px;line-height:1.28;margin-bottom:16px;}
.hero-copy h1 .hl{color:var(--c-primary);}
.hero-sub{color:var(--t-2);font-size:17px;max-width:620px;margin-bottom:24px;}
.anchor-pills{display:flex;flex-wrap:wrap;gap:10px;}
.anchor-pills .pill-a{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--r-pill);font-size:14px;color:var(--t-2);
  background:var(--glass-bg);border:1px solid var(--stroke);
  transition:color .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease),transform .25s var(--ease);
}
.anchor-pills .pill-a:hover{color:var(--t-1);border-color:var(--stroke-strong);background:var(--glass-bg-strong);transform:translateY(-1px);}
.anchor-pills .pill-a i{color:var(--c-primary);font-size:12px;}
.hero-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--stroke-strong);
  box-shadow:var(--sh-2);
  background:var(--bg-elev-1);
  aspect-ratio:2/1.25;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,0) 40%,rgba(7,11,18,.72) 100%);
}
.hero-media figcaption{
  position:absolute;left:18px;bottom:14px;z-index:2;
  font-size:13px;color:var(--t-2);
}

/* ============ 速览条 ============ */
.quick-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  padding:22px;border-radius:var(--r-card);
  background:var(--glass-bg);border:1px solid var(--stroke);
  backdrop-filter:blur(10px);
}
.quick-item{display:flex;align-items:flex-start;gap:12px;padding-right:14px;border-right:1px solid var(--stroke);}
.quick-item:last-child{border-right:0;padding-right:0;}
.quick-item i{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;display:grid;place-items:center;
  background:rgba(47,224,200,.10);border:1px solid rgba(47,224,200,.30);color:var(--c-primary);font-size:14px;
}
.quick-item strong{display:block;font-size:15px;font-weight:600;color:var(--t-1);}
.quick-item span{font-size:13.5px;color:var(--t-3);}

/* ============ 帮助主区 ============ */
.help-layout{display:grid;grid-template-columns:288px 1fr;gap:44px;align-items:start;}
.anchor-panel{
  position:sticky;top:calc(var(--nav-h) + 24px);
  padding:24px;border-radius:var(--r-card);
  background:var(--glass-bg);border:1px solid var(--stroke);
  backdrop-filter:blur(10px);
}
.anchor-panel h3{font-size:16px;margin-bottom:6px;}
.anchor-panel .panel-note{font-size:13px;color:var(--t-3);margin-bottom:18px;}
.anchor-list li+li{margin-top:6px;}
.anchor-list a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--t-2);
  border:1px solid transparent;
  transition:all .25s var(--ease);
}
.anchor-list a i{font-size:12px;color:var(--c-accent);}
.anchor-list a:hover,.anchor-list a.is-current{
  color:var(--t-1);background:var(--glass-bg-strong);border-color:var(--stroke);
}
.anchor-list a.is-current i{color:var(--c-primary);}
.panel-help{margin-top:20px;padding-top:18px;border-top:1px solid var(--stroke);font-size:13.5px;color:var(--t-3);}

.faq-group{margin-bottom:44px;scroll-margin-top:calc(var(--nav-h) + 22px);}
.faq-group:last-child{margin-bottom:0;}
.group-head{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.group-head .num{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  font-size:13.5px;font-weight:700;color:var(--c-primary);
  background:rgba(47,224,200,.10);border:1px solid rgba(47,224,200,.32);
}
.group-head h2{font-size:22px;}
.group-head h2 small{display:block;font-size:13px;font-weight:400;color:var(--t-3);letter-spacing:.4px;}

.faq .accordion-item{
  background:var(--bg-elev-1);border:0;border-bottom:1px solid var(--stroke);
  border-radius:0;overflow:hidden;
}
.faq .accordion-item:first-child{border-top:1px solid var(--stroke);}
.faq .accordion-button{
  background:transparent;color:var(--t-1);font-size:16px;font-weight:600;
  padding:20px 8px;box-shadow:none;gap:12px;line-height:1.6;
}
.faq .accordion-button:not(.collapsed){color:var(--c-primary);background:rgba(47,224,200,.05);}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--c-primary);outline-offset:-2px;}
.faq .accordion-button .q-mark{
  width:24px;height:24px;flex:0 0 auto;border-radius:8px;display:grid;place-items:center;
  font-size:12px;color:var(--c-primary);background:rgba(47,224,200,.12);border:1px solid rgba(47,224,200,.3);
}
.faq .accordion-button::after{
  content:"+";background-image:none;
  width:28px;height:28px;margin-left:auto;flex:0 0 auto;
  display:grid;place-items:center;font-size:17px;font-weight:600;color:var(--c-primary);
  border:1px solid var(--stroke-strong);border-radius:50%;
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg);background:rgba(47,224,200,.12);}
.faq .accordion-body{
  padding:0 8px 22px 44px;color:var(--t-2);font-size:15.5px;line-height:1.9;
}
.faq .accordion-body p:last-child{margin-bottom:0;}
.faq .accordion-body .hint{
  display:flex;gap:9px;margin-top:12px;padding:12px 14px;border-radius:12px;
  background:var(--glass-bg);border:1px solid var(--stroke);font-size:14px;color:var(--t-2);
}
.faq .accordion-body .hint i{color:var(--c-cta);margin-top:3px;}

/* ============ 反馈表单 ============ */
.feedback-wrap{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:46px;align-items:start;
  padding:46px;border-radius:var(--r-card);
  background:linear-gradient(150deg,rgba(150,200,255,.07),rgba(150,200,255,.02));
  border:1px solid var(--stroke);
  backdrop-filter:blur(10px);
  scroll-margin-top:calc(var(--nav-h) + 22px);
}
.feedback-copy h2{font-size:28px;margin-bottom:14px;}
.feedback-copy p{color:var(--t-2);}
.check-list{margin-top:22px;}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--t-2);padding:8px 0;border-bottom:1px dashed rgba(160,200,255,.12);}
.check-list li:last-child{border-bottom:0;}
.check-list i{color:var(--c-primary);font-size:13px;margin-top:6px;}
.feedback-form .field{margin-bottom:16px;}
.feedback-form label{display:block;font-size:14px;color:var(--t-2);margin-bottom:8px;font-weight:600;}
.feedback-form input,.feedback-form textarea{
  width:100%;padding:13px 15px;border-radius:var(--r-input);
  background:#0A111C;border:1px solid var(--stroke);color:var(--t-1);
  font-size:15px;font-family:inherit;line-height:1.7;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.feedback-form input::placeholder,.feedback-form textarea::placeholder{color:var(--t-3);}
.feedback-form input:focus,.feedback-form textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(47,224,200,.18);
  background:#0C1522;
}
.feedback-form .is-error{border-color:#FF6B57;box-shadow:0 0 0 3px rgba(255,107,87,.16);}
.feedback-form .field-msg{font-size:13px;color:#FF8F7E;margin-top:7px;min-height:18px;}
.form-tip{font-size:14px;margin-top:14px;min-height:22px;color:var(--c-primary);}
.form-tip.is-warn{color:#FF8F7E;}

/* ============ 相关分类 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--bg-elev-1);border:1px solid var(--stroke);border-radius:var(--r-card);
  overflow:hidden;position:relative;
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.rel-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.75),transparent);
  opacity:.6;
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--stroke-strong);box-shadow:var(--sh-2);}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-elev-2);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:19px;}
.rel-body p{font-size:14.5px;color:var(--t-2);margin:0;flex:1;}
.rel-body .go{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:7px;}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  padding:52px 48px;border:1px solid var(--stroke-strong);
  background:
    radial-gradient(600px 260px at 8% 0%,rgba(47,224,200,.16),transparent 62%),
    radial-gradient(520px 240px at 96% 100%,rgba(123,97,255,.16),transparent 62%),
    var(--bg-elev-1);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band h2{font-size:28px;margin-bottom:10px;}
.cta-band p{color:var(--t-2);margin:0;max-width:600px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:20px;padding:64px 0 28px;
  background:linear-gradient(180deg,rgba(12,19,31,.5),rgba(7,11,18,.96));
  border-top:1px solid var(--stroke);
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.42),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:38px;padding-bottom:38px;border-bottom:1px solid var(--stroke);}
.footer-brand p{font-size:14px;color:var(--t-3);margin-top:14px;max-width:320px;}
.footer-col h4{font-size:15px;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul li+li{margin-top:10px;}
.footer-col a{font-size:14px;color:var(--t-2);}
.footer-col a:hover{color:var(--c-primary);}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--t-3);line-height:1.75;}
.footer-contact i{color:var(--c-primary);margin-top:6px;font-size:13px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding-top:22px;font-size:13.5px;color:var(--t-3);
}
.footer-bottom a{color:var(--t-2);}
.footer-bottom a:hover{color:var(--c-primary);}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,7,12,.7);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:1050;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);z-index:1060;
  background:#0A111C;border-left:1px solid var(--stroke-strong);
  padding:22px 22px 34px;overflow-y:auto;
  transform:translateX(105%);transition:transform .32s var(--ease);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-bottom:18px;border-bottom:1px solid var(--stroke);margin-bottom:12px;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;background:var(--glass-bg);
  border:1px solid var(--stroke);color:var(--t-1);font-size:16px;
}
.drawer-nav a{
  display:flex;align-items:center;height:46px;padding:0 12px;border-radius:10px;
  font-size:15.5px;color:var(--t-2);
}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--glass-bg-strong);color:var(--t-1);}
.drawer-nav a.active{color:var(--c-primary);}
.drawer-cta{width:100%;margin-top:18px;}
.drawer-foot{margin-top:22px;padding-top:18px;border-top:1px solid var(--stroke);font-size:13.5px;color:var(--t-3);line-height:1.8;}

/* ============ 底部固定转化条 ============ */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:1030;display:none;
  align-items:center;justify-content:space-between;gap:14px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(10,17,28,.92);backdrop-filter:blur(12px);
  border-top:1px solid var(--stroke-strong);
  opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.mobile-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto;}
.mobile-cta span{font-size:13.5px;color:var(--t-2);}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  .wrap{max-width:1400px;padding:0 32px;}
}
@media (max-width:1199.98px){
  .help-layout{grid-template-columns:1fr;gap:32px;}
  .anchor-panel{position:static;}
  .feedback-wrap{grid-template-columns:1fr;gap:32px;padding:34px;}
}
@media (max-width:991.98px){
  .main-nav,.nav-actions .btn-c{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .hero-grid{grid-template-columns:1fr;gap:30px;min-height:0;}
  .hero-copy h1{font-size:30px;}
  .page-hero{padding:36px 0 40px;background-image:linear-gradient(180deg,rgba(7,11,18,.9),rgba(7,11,18,.97)),url('/assets/images/backpic/back-2.png');background-size:cover;}
  .quick-bar{grid-template-columns:repeat(2,1fr);}
  .quick-item{border-right:0;}
  .quick-item:nth-child(odd){padding-right:14px;border-right:1px solid var(--stroke);}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .section{padding:64px 0;}
  .section-tight{padding:48px 0;}
  .section-head h2{font-size:26px;}
  .mobile-cta{display:flex;}
  body{padding-bottom:66px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .wrap{padding:0 16px;}
  .hero-copy h1{font-size:27px;}
  .hero-media{aspect-ratio:16/9;}
  .rel-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:34px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-c{flex:1 1 auto;}
  .feedback-wrap{padding:24px 18px;}
  .faq .accordion-button{font-size:15.5px;padding:18px 6px;}
  .faq .accordion-body{padding-left:6px;}
  .group-head h2{font-size:20px;}
}
@media (max-width:575.98px){
  .quick-bar{grid-template-columns:1fr;}
  .quick-item,.quick-item:nth-child(odd){border-right:0;padding-right:0;}
  .btn-c{padding:12px 18px;font-size:14.5px;width:100%;}
  .btn-line-c{width:auto;}
  .anchor-pills .pill-a{font-size:13px;padding:7px 13px;}
  .section-head h2{font-size:23px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
}